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Blondes Are Going Extinct 09/30/2002
The BBC News reports that some
German scientists think blondes are an endangered species, and may go extinct within 200 years,
because the gene for blondeness is recessive.
Others are not so sure. Jonathan Rees at University of Edinburgh, for instance, says,
The only reason blondes would disappear is if having the gene was a disadvantage and I
do not think that is the case.
Wonder what Hitler would have thought of the possible extinction of
his blonde Aryan super-race. At least the females are not in danger, as long as enough boys wish
they all could be California girls. But maybe a new study needs to be done on the effect
of dumb blonde jokes on evolution. Why did
the blonde stare at the orange-juice carton? Because it said Concentrate.
How did she burn her ear? The phone rang while she was ironing. What do you call
100 blondes standing ear to ear? A wind tunnel. See? This could have major
impacts on evolution by sexual selection. But then again, the Pollacks didnt go
extinct. But now,
MSNBC claims that
the report seems to have been a hoax. Doesnt matter.
Evolution can explain opposites, the survival of blondes and the
extinction of blondes, with equal ease.
Next dumb story.
Archer Fish Beats Baseball Outfielders 09/30/2002
Nature Science Update reports
that archer fish are better than baseball players at calculating where their prey will
land. These fish spit narrow jets of water at insects overhead, and then figure
out within a tenth of a second where they will fall into the water. Then, without
looking back, they dart in for their snack. Baseball players, by contrast, are
constantly shifting their eyes as they mentally calculate where the ball will come down,
and tend to move in a curved path, whereas the fish seem to go straight at the target.
Archer fish also have to take into account the refraction
between the water and air. For a good film sequence on archer fish in action,
see the old Moody Science classic video
The Prior Claim or the more recent
Wonders of Gods Creation:
Animal Life.
Next headline on: Fish.
Next amazing story.
Buck-Tooth Dino Turned Vegan 09/30/2002
The Sept 21 issue of Science News claims
that a Chinese dinosaur evolved from meat-eating theropods to become a plant eater.
Called Incisivosaurus, the creature had rodentlike incisors and a hefty
overbite.
Nature Science
Update goes absolutely Looney Tunes over this dinosaurs
features.
Vegetarianism is unusual among theropods, but species can
evolve to fill unoccupied ecological niches. For example, carnivorous mammals
descendants that now shun meat include honey badgers, bamboo-eating pandas, and
termite-slurping aardwolves. This find helps clear up a paleontological debate,
the article explains, about the place of oviraptors in the evolutionary scheme.
Several features of Incisivosaurus suggest that Caudipteryx and
other oviraptors developed their avian featuers not through inheritance from birds but
through convergent evolution. Via that process, species with different evolutionary
origins can develop outwardly similar shapes if they occupy similar ecological niches.
Convergent evolution is not a process. It is a made-up phrase that veils
a serious problem in evolutionary theory, that unlike organisms that have no common ancestor
have similar structures. It is one more epicycle on a ponderous theory that is
collapsing under its own weight of bandages, duct tape and rubber bands trying to hold
it together. The evidence? Just a series of organisms, all well adapted to
their environment, that can be more easily explained by common Designer, not common ancestor.
Next headline on: Dinosaurs.
Georgia County School Board Votes to Teach the Controversy 09/27/2002
The Cobb County,
Georgia School Board voted 7-0 last night to approve
a controversial statement about origins teaching:
...the Cobb County School District believes that discussion of disputed views
of academic subjects is a necessary element of providing a balanced education,
including the study of the origin of the species. ...
The purpose of this policy is to foster critical thinking among
students, to allow academic freedom consistent with legal requirements,
to promote tolerance and acceptance of diversity of opinion, and to
ensure a posture of neutrality toward religion. It is the intent of the
Cobb County Board of Education that this policy not be interpreted to
restrict the teaching of evolution; to promote or require the teaching
of creationism; or to discriminate for or against a particular set of
religious beliefs, religion in general, or non-religion.
The policy is controversial only because it has been highly visible as
a contest between those like the NCSE and ACLU that want evolution taught
without any criticism, and those in the intelligent design movement that
believe teaching the controversy is healthy practice.
The carefully-worded statement specifically clarifies that this is not
intended to promote creationism or decrease teaching of evolution,
but only to stimulate critical thinking on controversial issues.
Incredibly,
Science
Now spun the story with the provocative title, Creationism Edges
Toward the Classroom.
Evolutionists are so hypocritical.
They claim to believe in critical thinking on everything except
evolution, and skepticism on everything except naturalistic philosophy.
What is the harm in this statement? It is actually
so blandly mild (see the Answers
in Genesis take on it), so favorable to the status quo, so open to interpretation,
that no pro-evolution teacher should feel any pressure to change, and
even the most ardent pro-Darwinists should find no cause for alarm.
But they do! They are adamant that evolutionism must be presented
as fact, unquestioned, dogmatically, so much so that teachers who dare to
quote even Stephen Jay Gould pointing out problems in Darwinian evolution
are threatened with excommunication.
Once the protestants recognize
the miters on the heads of these bishops, its going to be curtains
for the Church of Darwin. But it may take a Thirty Years War, and the
counter-reformation is already on the attack. The enthusiasm with
which this vote was met by the majority in the packed auditorium,
however, indicates a large groundswell of support for the new reformation
of the 21st Century.
Next headline on: Schools.
Next headline on: Intelligent Design.
Ios Volcanoes Spell Trouble for Long Age Estimates 09/27/2002
Alfred S. McEwen of the University of Arizonas Lunar and
Planetary Lab, writing in the
Sept 27
issue of Science, reviews some of the surprises that the
Galileo spacecraft found at
Io, the innermost moon of Jupiter. Although its volcanism was
well known since the Voyager flybys in 1979, scientists were shocked
to measure lava temperatures higher than anything on earth (~1800
oK), suggesting Io has an iron and magnesium rich (ultramafic)
crust. According to current theories of mantle differentiation, however,
such denser elements should not be present at the crust in sufficient
quantities to account for the observations. McEwen explains how,
over billions of years, it should all be gone:
The idea that Io is an ultramafic world seems at odds with the well-understood
process of magmatic differentiation. If Io has a solid lower
mantle capped by a partially molten layer, as believed by most planetary
geophysicists, then Ios crust should be strongly depleted in elements
like Mg. As mantle rocks begin to melt, the first component to melt
has a lower density. It segregates and rises toward the surface after
~10% melting of a given volume of the solid mantle. If Ios
typical heat flow over geologic time is just 10% of todays value,
then we can expect 1012 km3 of silicate melt over
the last 4000 million years--40 times the volume of Io. There should
thus have been sufficient heat to melt 10% of Ios volume 400
times. After just four episodes of such partial melting, Io should
have formed a low-density crust ~50 km thick (11). High-temperature,
dense mafic or ultramafic lavas could only rise through the thick
low-density crust under extraordinary circumstances.
As a possible solution to this dilemma, he points to the model of
Keszthelyi that Ios mantle might be a crystal-rich magma ocean,
for which there might be indirect support, but he admits it is
difficult to explain how Io first got into that state.
Maybe we are misinterpreting sparse data. He leaves the mystery
unresolved.
A new series of dramatic pictures of Io from the
Galileo spacecraft was released December 9, 2002.
Dr. Ed Stone, the Voyager project scientist,
has admitted many times that the discovery of active volcanoes on Io was
a total surprise. These small bodies, far from the sun, should long ago
have become frozen and dead. Even the theory of tidal flexing does not
appear anywhere near sufficient to account for the amount of activity observed.
That was bad enough, but the high temperature of the lavas, indicating the
presence of dense elements, was a further blow to conventional theories.
The only suggestion that makes sense is that Io is much younger than the
assumed four billion year age of the solar system. When
other solar system phenomena also defy long ages, like comets and rings
and short-lived radionuclides, why must the age parameter
be sacrosanct? Two reasons: a young solar system would defy naturalistic
explanations by indicating abrupt appearance, and it would not allow time
for evolution (begging the question that four billion years would
be enough, anyway). Take note of the observational evidence.
At even 10% the current heat output, McEwen states, Io would have had
time to completely melt 40 times in 4 billion years. At current
heat output rates, that would be 400 times. With anomalies that
large, its time for some creative alternatives.
Next headline on: Solar System.
Next headline on: Geology.
Next headline on: Dating Methods.
State of the (Exo)Planet Address 09/26/2002
NASA scientist Jack Lissauer discusses the current status of
searches for exoplanets (bodies that orbit other stars) in the
the Sept 26 issue of Nature.
About 100 are now known from indirect measurements of star wobbles.
Most are large and massive, Jupiter size and above, but
that is a selection effect due to the difficulty of measuring small
perturbations from smaller bodies. Many have highly elliptical orbits,
and the range in size and distance is quite surprising (and discouraging
for simplistic theories of planet formation). Newer technologies,
including the 2007 Kepler mission,
should not only increase the number, but find (possibly) some planets
that remind us of earth, at least in terms of mass, presence of water,
and distance from the star.
Planets do not select nutrients, reproduce, or
pass on genetic instructions, so we will give the evolutionists all the
planets they want and still ask how naturalism can produce complex specified
information and molecular machines without intelligent design.
Were reminded of a somewhat irreverent but thought-provoking cartoon of
Frank and Ernest as angels at the creation, standing on a cloud and asking God,
The stars turned out just fine, Sir. What do you want us
to do with the little balls of dirt?
Next headline on: Solar System.
Shipping Labels Used on Cells Cargo 09/26/2002
Bound for New York? Read the label. Destined for the
trash can? Read the label. Just as Federal Express or any
other shipping company depends on labels to keep myriads of packages
on target to equal myriads of destinations, the cell tags its cargo
with molecular labels to keep everything on track.
Nature (Sept. 26) has two articles on this topic that explain
how the cell does it. In
The Making of a Vesicle, Anne Schmidt
describes work by
Ford et al
on a protein tag called epsin that stimulates a membrane to curve
around, or package a piece of cargo for shipment, such
as nutrient uptake or removal of parts from the cell surface.
In another
News and Views
article, Keith Wilkinson in Unchaining the condemned describes
how the cell labels obsolete cargo for the recycle bin.
Apparently, the protein tag called ubiquitin (which is truly
ubiquitous in all eukaryotic organisms) tells the proteasome (the recycle bin)
that this cargo is ready for dismantling and salvage. Wilkinson explains:
To carry out their functions properly,
the proteins in our cells must be in the right place at the right time,
and at the right concentration. So its vital that cells achieve
the correct balance between protein synthesis and destruction.
Although we understand much about how proteins are made, it is only in
the past ten years that we have come to appreciate the complexity of
their degradation. Like everything else, proteins outlive
their usefulness and, whether damaged or just no longer needed, they
are often condemned to destruction by the covalent attachment of another
protein, called ubiquitin. When this process fails, it has profound
consequences for events such as cell division, gene expression and the
development of cancer.
Wilkinson presents the work of
Yao
and Cohen that indicates that one ubiquitin tag means sort,
and several means recycle. The rest of the cell must understand
the tag to know what to do, and the proteasome (shaped like a narrow
tunnel) has to remove the labels before doing its grisly work.
We tend to visualize miniature people
when we read such things, but consider that these are blind molecules,
operating in the dark, that somehow are able to sense their surroundings
and take appropriate action. The degree of fidelity is astonishing,
and the consequences of mistakes are disastrous. How do they do it?
Believers in God have ever more reasons to worship
when confronted with such marvels. Unbelievers? Well, to
alleviate stress, try not to think about it.
Next headline on: The Cell and Biochemistry.
Next amazing story.
Computer Science Can Help Us Understand Life 09/26/2002
In a Concepts editorial in the
Sept. 26
issue of Nature, two Israeli scientists think that
biochemists need computer science to understand life.
Computer science can provide abstractions that can illuminate
structures and processes used by the cell:
- For example, the DNA-as-string abstraction is relevant in capturing
the primary sequence of nucleotides without including higher- and lower-order
biochemical properties; it allows the application of a battery of
string algorithms, including probabilistic analysis using hidden Markov
models, as well as enabling the practical development of databases and
common repositories...
- it is understandable, in that a string over the alphabet A, T, C, G is a
universal format for discussing and conveying genetic information; and
extensible, enabling, for example, the addition of a fifth symbol...
- Process behaviour is governed by reaction rules specifying the
response to an input message based on its content and the state of the process.
- Using this abstraction opens up new possibilities for understanding
molecular systems. For example, computer science distinguishes
between two levels to describe a systems behaviour: implementation
(how the system is built, say the wires in a circuit) and specification
(what the system does, say an 'AND' logic gate).
Once biological behaviour is abstracted as computational behaviour,
implementation can be related to a real biological system, ...
The authors note the similarity between biological systems and
computer networks, noting that both are hierarchical systems built on
core components: the internet is a network of computers, and higher
organisms are networks of cells.
They point to a significant difference, however:
Of course, biomolecular systems exist independently of our awareness
or understanding of them, whereas computer systems exist because we
understand, design and build them. Nevertheless, the abstractions,
tools and methods used to specify and study computer systems should
illuminate our accumulated knowledge about biomolecular systems.
Thus they leave vague the question of who, if Anyone,
designed and built the biological systems, but that question
seems to have no practical bearing on the fruitfulness of the approach.
This is all intelligent design talk.
Where is the evolution? Why would Darwinspeak be of any benefit
in such an approach?
If we can profit from visualizing living systems as complex
networks of adaptable components, if we need to think like computer scientists
and network engineers to understand life, so be it. There may be
metaphysical implications to all this, but the core concepts derive
from observation, not metaphysics. Here, Nature published
this without qualms, Darwin was quietly ignored, and Eugenie Scott
didnt have a fit. Religion in the science lab?
No fear. Get real.
Next headline on: Intelligent Design.
Hoping for a Chance Solution to the Left-Handed Protein Puzzle 09/26/2002
If youve studied the issue of the origin of life for long,
you know about the mystery of the left-handed
amino acids that make up the proteins of all living things: the
chirality problem.
Since both hands form equally in nature, why do biological molecules (proteins
and DNA) consist of chains with only one hand?
Figuring out how that originated is one of the great puzzles
of astrobiology. It seems incredibly unlikely to have been a
luck of the draw, but Jay Siegel of UC San Diego, writing in the
Sept.
26 issue of Nature, prefers the chance avenue over determinism
(the approach that the solution lies in the laws of physics).
Commenting on the recent work of Singleton and Vo in the
Journal
of the American Chemical Society,
he envisions experimenters finding a autocatalytic reactions that
could amplify one-handedness in its products, and maybe transfer that
homochirality to other compounds. While admitting that any
hypothesis must consider that chirality could degrade (return to
equilibrium, 50-50 of both hands), he concludes that
smart money still bets on chance over determinism.
Proteins must be 100% pure of one hand,
or they wont work. By carefully controlling the generations
of reagants, Singleton and Vo were able to achieve 71% of one hand over
the other, if optically active (i.e., one-handed) impurities were
present to seed the autocatalytic reactions. But they caution:
It is an adage in chemistry that purity is a matter of
degree. Thus, it is not clear to us how any macroscopic
solution reaction may be carried out in the biosphere in the complete
absence of optically active materials. The results here demonstrate
that trace amounts of optically active materials may dominate the
outcome of reactions, and this suggests caution in interpreting
reactions involving large asymmetric amplifications. ...
... However, any complete theory on the origin of biological homochirality
also requires a mechanism for asymmetric amplification, a mechanism
for maintenance of optical activity despite decomposition and
racemization [i.e., randomizing tendencies], a mechanism for
dispersal of optical activity from localized areas, and a mechanism by
which one enantiomer [one of the two hands] can take over in areas where
the opposite enantiomer is in excess.
Thus the mystery involves multiple levels of improbability.
They foresee a possible path to a solution through autocatalytic
amplification of chance excesses of one hand, but have not yet demonstrated it:
We are currently exploring this hypothesis in both mathematical
and experimental models. So at this time, the solution to the
homochirality problem in prebiotic synthesis remains elusive.
Scientists may one day discover a solution, unlikely
as it seems now. But its important to recognize the difference
between this mystery and the mystery of the origin of biological
information. Getting molecules of all one hand, when both are
equally likely, is a mystery, but it involves little in the way of
information. The source of the coded genetic instructions in DNA,
on the other hand (if you will pardon the expression), is a different
ball game. There, genes are able to enforce the one-hand rule,
build proteins of only one hand, recognize the opposite hand and either
reject it or fix it. That is a greater mystery, seemingly
unapproachable by either chance or determinism. Intelligent design,
however, is abundantly capable as a cause, and the best inference from
common sense and experience.
Next headline on: Origin of Life.
The Bacterium from Mars Alleged 09/25/2002
Some Russian scientists feel Deinococcus radiodurans must have
evolved on Mars to get its remarkable resistance to radiation.
The bacterium can withstand thousands of times the radiation that would
kill a human. Pavlov does not believe that there has
been enough time for this resistance to evolve, says the
report in New
Scientist. Others disagree with the Martian origin idea, but
have no clue why this bacterium would evolve such resistance.
Anatoli Pavlov theorizes that repeated doses, hundreds of millions of years
apart, would have been required to evolve this ability on earth, but on
Mars it could have happened in a few hundred thousand years.
So why didnt everything else on
earth exposed to such high radiation evolve this ability? Did the
bacterium first evolve here, then hitch a ride to Mars and work up its
resistance, then come back home? If it evolved there, why does it
have similar DNA-protein biochemistry? Its fun being a
scientist. You can say anything you want and the reporters will
give you good press.
Next headline on: Mars.
Next dumb story.
Scientists Fold a Small Protein 09/25/2002
According to Nature
Science Update, scientists were able to calculate the fold of a small
protein of 20 peptides just from knowing its amino acid sequence.
The synthetic protein folds into a tight structure like real proteins;
most short chains remain loose and floppy, the report states.
The team used computer simulation to predict the fold that actually
occurred, measured by nuclear magnetic resonance spectroscopy.
The difficulty in predicting the fold grows exponentially, however,
with length of the sequence, and most proteins are hundreds of amino
acids long. The precise fold of a protein is essential to its
function. Understanding and predicting protein folding
from just the amino acid sequence is one of the most formidable challenges
facing biochemists.
On a related subject, a paper in the Sep. 25 preprints
of the Proceedings
of the National Academy of Sciences discusses some of the many
diseases that occur when proteins do not fold correctly.
See our February 27
headline on this subject to appreciate the difficulty of understanding
protein folding. As we reported May 20
also, there does not appear to be only one possible shape a sequence can
form. Proteins in the cell are assisted by chaperones, molecular
machines that take the newly-sequenced chain from the ribosome and help
it fold into the one and only unique shape that will make it work.
Without that unique shape, it is useless or even dangerous, often
involved in serious diseases. How amino acid chains fold properly
is an amazing and mysterious subject. What these scientists did
with a short 20-link chain is interesting, but vastly simpler than what
cells do constantly in milliseconds. It is like solving a 2x2
Rubiks cube compared to a 6x6.
Next headline on: The Cell and Biochemistry.
New Darwin Centre Set to Open in London 09/24/2002
The
BBC News has a
feature and pictures about the new Darwin Centre, the biggest single
development ever undertaken at Londons
historic Natural History Museum. Phase One is set to open to the
public at the end of September. 22 million specimens of animals
will be housed at the new center, including some Darwin collected on
the Beagle. Phase Two (slated to open in 2007) will include
six million plants and 28 million insects. The facility will not only
allow much better and spacious conditions for storage and analysis of the
specimens, but will allow the public to watch scientists at work.
Darwin would approve, the article states, and quotes
Professor Steve Jones of University College:
Biology is a science, however disparate,
and a science first recognised by Charles Darwin. And this centre
is a monument to that fact.
Darwin was not the first. How about
John Ray, Carolus Linnaeus, and others who, as Christians and creationists,
took pleasure and delight in observing and classifying living things?
Darwins observing and collecting were fine, but he is best known
not as a naturalist (collector) but a naturalist (materialist) who
started the ball rolling that developed into todays
materialistic science establishment.
Now that the very evidences he depended on
for his theory of natural selection have been debunked,
and the fossil record has failed to show
his slow and gradual changes, and our understanding of
the complexity of life has exploded
beyond anything he could have imagined, the honor accorded to Darwin
is not appropriate for this facility. It should be a monument to
creative intelligent design the antithesis of what Darwin stood
for. At least Cornwall beat them to it with the
Eden Project last year.
Next headline on: Darwin.
Whoops, We Were Wrong: Human-Ape Difference Just Tripled 09/23/2002
How many times have you heard that human and chimpanzee DNA
differs by only 2% or even 1.5%? That estimate, it turns
out, was based on measuring the temperature at which matching DNA of two
species comes apart.
New
Scientist now reports that the developer of that technique,
Roy Britten of Caltech, had second thoughts about the oft-quoted
figure, and checked it out with new methods, now that the chimpanzee
genome has been published. Comparing insertions and deletions
yields a figure three times bigger, over 5% difference, and that
only after comparing about three hundredths of a percent of the
genome. Moreover, it is still a long way off before we will
understand what other epigenetic factors make us different, such
as gene expression. The campus newsletter
At
Caltech has a more detailed explanation of Brittens announcement.
His official paper is published in the
Proceedings
of the National Academy of Sciences, at the
conclusion of which he states, One interesting observation
is that the sequence divergence between chimp and human is quite large,
in excess of 20% for a few regions. Some of the larger gaps are
broken by regions within them that align with appropriate segments of
the other species DNA sequence but only have distant similarity.
These observations suggest that complex processes, presumably involving
repeated sequences and possible conversion events, may occur that will
require detailed study to understand.
Update 10/22/2002:
Science
Now reports that two independent teams have found more differences:
For almost 30 years, researchers had assumed that the DNA of
humans and chimps is at about 98.5% identical. Now a closer look
has revealed previously undiscovered nips and tucks in equivalent
sections of DNA. ... Together, these insertions and deletions suggest
that the genomes are not quite as similar as researchers had thought.
Statistics can be so misleading.
It is to be expected that we are going to share a lot in common with
other primates, if we can all eat bananas. Even the current
figure is only statistical, and measures only one parameter.
By other measures there is a gulf much bigger than 5%.
Besides, its highly unlikely the human soul is coded in DNA.
Though we act like beasts much of the time, there is a nonmaterial part of us
that makes us build spacecraft, write and perform symphonies, weep over
evil, blush with guilt, and sense the need to worship God.
That difference is 100%.
Next headline on: Human Body.
Next headline on: Mammals.
Inching Closer to the Island of Dr. Moreau 09/23/2002
Just when you thought terrorism gave us enough to worry about, now
we need to watch out for the mad scientists who want to mix human and
animal genes. Wesley J. Smith of the
Discovery
Institute, writing for
National
Review, discusses the dangers of The Transhumanists
those who are thinking ahead to the possibility of implanting animal
genes into humans and vice versa. Since transgenic experimentation is
already being done between animals,
what is to stop scientists from doing human experiments,
whether for eugenics or less idealistic motives?
It is already being discussed, and advocated, by some.
Smith recommends that the government act quickly to ban the
implantation of animal genes into human embryos.
But given Washingtons record of waffling on human cloning,
the prospects do not look promising.
The humanist novelist H.G. Wells (who
rebelled against his Christian upbringing while learning about Darwinism
in college), wrote a novel called The Island of Dr. Moreau,
in which he portrayed a megalomaniac scientist who had engineered chimeras
that were part human, part animal, to do his every bidding.
Now that we are on the threshold of transgenic
engineering, unless our leaders realize the ethical risks and act decisively,
it will be too late once the catwoman is out of the bag.
Do humans have any dignity left, or is that just a relic of an
outworn religious belief that we were created in the image of God,
distinct from the animals? Smith quotes these chilling words of
bioethicist Gregory Pence:
Pence writes, In some ultimate sense, humans are both nothing more,
and as wonderful as, compassionate monkeys. By weakening
the ethical boundary between non-human and human animals, he asserts
that it will be easier to do to humans some of the things we think
quite sane to do to animals, beginning with cloning and moving from
there to genetic modification.
Compassionate monkeys. What will this do to our
founding principle that all men are created equal, and endowed by their
Creator with certain inalienable rights? Do compassionate monkeys
have human rights? If a future chimeric human has only 80% human
genes, will he or she get only 80% of the rights of others? It all
starts so noble, trying to improve the quality of life of people with
genetic diseases, but where does it stop? Where is the line that
cannot be crossed, if we are just compassionate monkeys? What is
compassion, anyway, if we are just animals? It is only an illusion.
Weve seen the bitter fruits of communism and
Naziism coming from Darwins tree of death, but there are other
fruits in the bud, slowly ripening to portend horrors we can only imagine.
Next headline on: Politics and Ethics.
Political Science: Anti-Design Pressure Applied Against a Georgia School Board 09/20/2002
Conservative News Service
reports that National Academy of Sciences president Bruce
Alberts is asking members to lobby the Cobb County, Georgia school
district and protest the placement of disclaimer stickers in science
textbooks that warn students that evolution is just a theory
and should be looked at with an open mind. The ACLU,
also, is suing the school district to remove the stickers.
Meanwhile, the county school board is scheduling a vote Sept. 26
on a policy that includes the statement, the Cobb
County School District believes that discussion of disputed
views of academic subjects is a necessary element of providing
a balanced education, including the study of the origin of the
species.
As we have seen repeatedly in these
school board cases, the scientific establishment has all the trappings
of a giant political action committee or powerful union.
Why do they want to shield
students from the damaging evidence against evolution that we present
repeatedly here in Creation-Evolution Headlines, including
evidence that is printed almost weekly in the Proceedings of the
National Academy of Sciences, one of our primary sources?
Bruce Alberts himself said in 1998 that the biology of the future
involves studying molecular machines like design engineers (see our
January 9 headline and commentary).
Its hypocritical for them to turn around and keep design
language out of the science classroom.
Biology can be kept clear of sectarian religion by just
talking about the observable, testable concepts of information and design.
It is a huge lie, the opposite of the truth, for Robert Boston to claim
that the proposed policy is just a dumbing down of the academic
curriculum ... it replaces science curriculum with a religious
curriculum, which is inappropriate in public education.
Thats the unfortunate situation right now! Kids are being dumbed
down by not allowing them to think critically and hear all the facts.
They are being indoctrinated already into
a religious philosophy naturalism which is inappropriate
in public education. Clearly, no one is asking for religious teachings to
be taught or given preference in a science class. But neutrality and
objectivity are not the same thing as philosophical naturalism;
being non-sectarian or impartial does not mean
you have to claim, against the evidence, that only particles exist.
Scientists themselves frequently use adjectives like elegant, exquisite,
complex and amazing when describing the designs
found in living things. Design terminology is perfectly
appropriate and natural when teaching biology; there is nothing
unscientific about it. Claiming that the design is only apparent
and can be explained by undirected, impersonal natural forces is a
philosophical judgment akin to a mystery religion, where things are
not what they seem, cannot be observed, and must be taken on faith.
So its
not
the disclaimers that are dumbing down the kids.
Rather, it is refusing to tell them that some of their
textbook illustrations are fraudulent,
that they must just swallow the Darwinian tale
uncritically,
or that they must be shielded from facts that
are problematic for evolution such as the
Cambrian explosion.
Why would the NAS and the ACLU, then, call evil good, and good evil?
The only explanation is that they are afraid that the case for
evolution is evaporating, and the only way to maintain their
naturalistic stranglehold is to use force and intimidation.
If so, thats a good sign. Give students a little information,
and theyll see through the line they are being fed and rebel.
If not, then prove it: call off the ACLU enforcers, and lets
have rational debates on the evidence, like good scientists.
Next headline on: Schools.
Next headline on: Intelligent Design.
Big Bang Bolstered, Yet Preposterous 09/20/2002
According to the
BBC News,
a prediction of the big bang has been confirmed by observations made
at the South Pole. The prediction was that the cosmic
microwave background would be polarized, and 5500 hours of radio
telescope time have detected the polarization. Though relieved
and excited about the potential new information this measurement will
bring, astronomers like Dr. Carlson of Chicago University are disturbed
by the implications.
...the new observations are pointing to an ever-more
puzzling Universe: a Universe whose birth was dominated by mysterious
dark matter and dark energy. Were stuck with a
preposterous Universe, he says.
This measurement does not confirm any
particular theory unless all other possibilities have been ruled out.
Always remember Finagles
Second Law: No matter what the anticipated result, there will
always be someone eager to (a) misinterpret it, (b) fake it, or (c)
believe it happened according to his own pet theory.
Cosmological measurements are on the bleeding edge of the possible,
and their interpretations are invariably clouded by assumptions.
They keep saying that every new measurement bolsters the big bang
theory, but look at the implications. Now they have these giant
fudge factors of dark matter and dark energy they dont know
what to do with. Which side of the eyepiece has the preposterous
matter?
Next headline on: Cosmology.
Whats In a Name? 09/20/2002
The Discovery Institutes Center for the Renewal of Science
and Culture has just shortened its name to the
Center for Science
and Culture. Mark Edwards, the Director of Media and
Public Relations, says it was changed because the
the old name was simply
too long. The Sept 20 issue of
Science magazine,
however, sees this as Designs evolving image.
They note that the image of Michelangelos fresco The Creation
of Man in their logo was changed to a Hubble photograph.
The magazine gives the last word to Eugenie Scott of the National Center for
Science Education: There is still a superfluous word in the
centers name: Science.
Well then lets have her remove
the words science and education from her
organizations name, because the NCSE is concerned with neither,
but only keeping creation out of science classrooms and harrassing
teachers who teach the controversy
about Darwinism. Scott believes its OK to teach falsehoods like
Haeckels embryos
in school textbooks, and its necessary to indoctrinate students
and shield them from contrary evidence instead of teaching them to think
critically, as she herself admits in so many words on camera in the film
Icons of Evolution.
Science magazine should be ashamed for printing her hypocritical,
vacuous vituperation. Watch the film, go to the
CSC website, and answer the substance of the arguments, please.
Runner-up for dumb entry of the week:
New
Scientist claims that right-wing governments increase the rate
of suicides in a country. Now theres a
non-sequitur wrapped in a
glittering generality,
seasoned with selective reporting.
Next dumb story.
Motors in Your Ear Amplify Sound 10,000-Fold 09/19/2002
What limits the hearing range in the ear? Apparently not the
eardrum or bones of the middle ear, but the cochlea in the inner ear.
Thats the finding of scientists writing in the
We reported in February about prestin,
the speedy molecular motor that is involved in controlling the volume
of sound on the hair cells of the cochlea. Now, scientists writing in the
Sept. 19 issue
of Nature
have confirmed that prestin is the primary agent in the control of
sound amplification, or at least that no other mechanism is necessary
to explain the observations. In their
research paper entitled,
Prestin is required for electromotility of the outer hair cell and for
the cochlear amplifier, they explain that this little molecular
motor, that affects the stiffness of outer hair cells responding to sound waves,
provides a 40-60 decibel increase in sensitivity of the ear: a factor of one to
ten thousand. By knocking out the prestin motor in mice, the scientists
observed a 10,000-fold reduction in hearing sensitivity.
The hearing ability of mammals is an
exquisitely tuned series of mechanical and electrical systems.
Prestin itself is an electromechanical transducer. Along with
the other mechanisms, it allows us to tolerate the differences in volume
between a jet take-off and the purring of a cat. See also our
March 2001 headline on this subject.
Next headline on: Human Body.
Committed Religious Teens Are Healthier, Less Trouble 09/18/2002
Researchers at University of North Carolina at Chapel Hill surveyed
2,478 high school seniors and found that the most committed to religious
practices were the best behaved in society, reports
EurekAlert.
They were less delinquent, less in trouble with the law, less likely
to use drugs or engage in other risky behaviors, more likely to exercise
and eat right, and more likely to be involved in volunteering, sports and
community services.
But there was little benefit with mild or inconsistent attachment to
religion; only those really committed, to whom their religion was very
important to them, showed the benefit. This research is consistent
with earlier smaller scale studies, but The new work, released in a
report today (Sept. 18), is among the most comprehensive looks yet on
the link between religion and positive and negative adolescent behavior.
Solomon said, When wisdom enters your
heart, And knowledge is pleasant to your soul, Discretion will preserve you;
Understanding will keep you, To deliver you from the way of evil, From the
man who speaks perverse things, From those who leave the paths of uprightness
To walk in the ways of darkness; Who rejoice in doing evil, And delight in
the perversity of the wicked ... So you may walk in the way of goodness,
And keep to the paths of righteousness
(Prov 2:10-14,20). Isnt
it a handy thing that religion evolved.
Next headline on: Health.
Primordial Soup Cannot Tolerate Salt 09/17/2002
In what appears to be a devastating blow to beliefs that life
first appeared in the oceans, scientists at UC Santa Cruz,
publishing in the journal
Astrobiology Vol 2. No. 2 (2002) have
experimented with what salt does to RNA and membranes.
They found that sea salt destroys fatty-acid membranes and prevents
RNA from forming chains (polymerizing), even at concentrations seven
times weaker than in todays oceans. The ingredients of sea
salt are very effective at dismembering membranes and preventing RNA
units (monomers)
from forming polymers any longer than two links (dimers). Noting
the exceptional properties of contemporary cellular membrane
structures, they emphasize that without some kind of osmotic
control, primitive vesicles would have collapsed in the presence
of divalent cations such as are present in sea salt. Even if early
oceans were far less salty, the prebiotic compounds would have needed to
be concentrated. But as they logically point out, Concentrating
mechanisms often have a drawback in that they are not selective.
That is, not only monomers but also any ionic solute present will be
concentrated, including the damaging salts.
Considering
their study a crucial piece of information for origin of
life studies, they conclude
that the origin of life in the oceans would not be possible, and that a
very protected environment of fresh water on the continents would
have been necessary for emergent life to evolve far enough to protect
itself from the damaging effects of sea salt: In this very protected
environment, simple protocellular entities could thrive until the
evolutionary appearance of a primitive metabolic machinery and active
salt transport systems in membranes allowed them to overcome the disruptive
impact of more saline environments. The paper is entitled,
Influence of Ionic Inorganic Solutes on Self-Assembly and Polymerization
Processes Related to Early Forms of Life: Implications for a Prebiotic
Aqueous Medium, by Monnard, Apel, Kanavarioti and Deamer.
It is almost funny to read this paper
while imagining the scriptwriters at the Discovery Channel or National
Geographic hearing the bad news. All hopes for a naturalistic
origin of life are being dashed so hard, it seems like a succession of
disaster stories comparable to
Pharoahs
ten plagues. Here in the journal Astrobiology, the
palace for the study of the evolution of life in the universe, Pharoah is still
waiting for Ra to come to the rescue, and these magicians have just told
him all the firstborn have died. How long will you harden your
heart? Know that the Lord is God. Let the people go to the
promised land of intelligent design.
Next headline on: Origin of Life.
Ohio School Board Vote Hangs in the Balance 09/17/2002
Despite widespread public support for teaching intelligent design,
or at least criticisms of Darwinism, in Ohio schools, the school
board appears to be rushing the evolution-only draft science standards
for vote Oct 15 without modification. The group advocating
intelligent design,
Science Excellence
for All Ohioans (SEAO),
reported today that at the last board meeting on
the 10th, though the science standards were not on the agenda, board members
listened to an hour of public testimony about them. Three evolutionists
spoke, followed by ten advocates of the teach
the controversy approach those who favor allowing evidence
against Darwinism and/or for intelligent design. SEAO fears that
the board is ignoring the will of the majority of Ohioans who have
expressed support of the latter. Unless the board changes its
direction, it will approve the draft standards that retain an
evolution-only stance, even though the standards were slightly
modified to add the word theory to evolution and omit
discussion of the origin of the universe and the origin of life
(changes that have angered the evolutionists). SEAO is troubled by
the suggestion to relegate teach the controversy to
social
studies: This move appears to be an attempt to divert attention
from the real issue. The question is not whether intelligent design
belongs in the social studies standards; the real issue is whether evolution
will be taught objectively and without bias in the science classroom.
The teach-the-controversy approach must be implemented in the science
standards, not social studies. SEAO calls this battle between
the public and the school board and their Darwin-only advisers
The Ohio Firestorm.
In the public forum, Jody Sjogren made
a surprise announcement about new curricular materials that will be
available within a month to support the teach-the-controversy proposal.
We think we know what materials she is talking about and will announce
them here as soon as they become available.
Next headline on: Schools.
Next headline on: Intelligent Design.
Endosymbionts Mutate Twice as Fast 09/17/2002
Endosymbionts are organelles alleged to have once been free-living
organisms. A Penn State biochemist and his colleagues compared
their genomes with their presumed closest relatives and found, on average,
twice as many amino acid substitutions. The results are published in the
Sept 16 online
preprints of the Proceedings of the National Academy of
Sciences. They puzzled over the phenomenon; how could
deleterious mutations accumulate without destroying function?
If the proportion of slightly deleterious mutations is greater than
that of slightly advantageous mutations, as is often assumed, the gene
would again eventually deteriorate in long-term evolution. One
hypothesis to prevent this situation is to assume that a large-effect
advantageous mutation occasionally occurs and rescues the gradual
deterioration of gene function. However, this hypothesis is
unrealistic, because it is unclear how a single mutation can nullify
the effects of many deleterious mutations at the molecular level.
In addition, definitely deleterious mutations are likely to occur quite
often in any gene. Therefore, unless all deleterious mutations
are eliminated by purifying selection, most genes would become
nonfunctional. Once the occurrence of deleterious mutation is
balanced by purifying selection, amino acid substitutions are expected
to occur following the neutral model of evolution irrespective of
population size. Definitely advantageous mutations, which may
occur occasionally, would increase the rate of protein evolution, but
as long as protein function remains the same, their contribution is
expected to be small.
Since the protein products retain their functions, it appears that
the net effect is neutral, whether the mutations themselves are neutral
or whether the good ones compensate for the bad, because they do not
change the gene function in long-term evolution (no adaptation).
Either way, the authors can only suggest a working hypothesis that the
differences are caused by a higher mutation rate in the endosymbionts.
It would be interesting to test this hypothesis with experiments,
they conclude.
This paper is listed under the topic
Evolution, but does anyone see evolution here? Not a single
advantageous mutation or adaptive change has been cited. Most of
the talk is about downward change, or level change at best.
The paper begs the question that organelles like mitochondria were
once free-living organisms, a
topic of controversy among biologists.
Even so, the results were a surprise, and you see the authors puzzling over
why the mutation rate would be higher among these subjects.
The bottom line is that no Darwinian selection toward better fitness was
demonstrated, despite the bluffing title Acceleration of genomic
evolution caused by enhanced mutation rate in endocellular
symbionts. What they did show was just deterioration,
randomization and degradation, the way of all the earth.
Next headline on: Darwinism and Evolutionary Theory.
On the Evolution of Fruit Fly Color 09/16/2002
The Sept 17 issue of Current Biology
has another paper on the fruit fly Drosophila, one of
the most-studied critters in all science. This one tries to
explain how color evolved in different populations of the tiny flies,
which vary in the amount of black and yellow pigment between species.
The scientists from Howard Hughes Medical Institute, in their
paper Evolution of yellow Gene Regulation and Pigmentation in
Drosophila, explain the problem:
Changes in developmental gene expression are central to phenotypic evolution,
but the genetic mechanisms underlying these changes are not well understood. ...
A major challenge of biology is understanding the genetic basis of
evolutionary change. Genetic analyses of model organisms have
identified a number of candidate genes that may have
contributed to the evolution of phenotypic differences between species.
Mutations in these genes produce phenotypes that resemble those of
other species, and this has prompted hypotheses that similar genetic
changes may have given rise to existing interspecific differences ...
The specific genetic changes responsible for particular differences in
gene expression remain largely unknown.
The researchers swapped genes for yellow color between species to see
what happened, and realized that much more was involved than mutations
on a single gene. They found that not just the genes, but how
they are expressed, both on the DNA and protein side, are involved.
In addition, there are promoters and enhancers and modifiers that
affect coloration, as well as additive effects of mutations and epistatic
effects (how genes work together). So mutation of the gene for
yellow color was a factor, but evolutionary changes in other
genes were also required.
The results are largely inferential and
circumstantial, leaving many questions unanswered, such as how can multiple
mutations work together to achieve a coordinated result. It also appears
that variation is tightly regulated and controlled, not random.
The idea of a point mutation providing a benefit and spreading
through a population to form a new species is being seen these days
as overly simplistic. Gene expression and regulation are just
as important. The authors point to studies of the classic
evolutionary case of the industrial melanization of the peppered moths
that found that introducing the gene for dark color into light-colored
moths does not by itself make them dark; there are suppressors that can
control whether or not the gene is expressed. The important
thing to notice is that after decades of study on Drosophila,
evolutionists still do not understand how color evolves, and thats
the easy part. When simple variation in the expression of genes
for pigment presents such a challenge, how can they claim that the
fruit fly itself evolved, with its wings, compound eyes, nervous system,
mouth parts, digestive system, articulated limbs, and so much else?
How many billions of lucky accidents had to work together to produce
flying machines that can hover, dart, and fly backwards?
Next headline on: Bugs.
Next headline on: Darwinism and Evolutionary Theory.
Original Neandertals Rediscovered 09/13/2002
A multi-disciplinary team has sifted through the soil of Neander Valley,
named after
Joachim Neander (1650-1680), a teacher, poet, and
composer of hymns who often visited the area, and found
over 60 human skeletal fragments, along with a large series of
Paleolithic artifacts and faunal material. They carbon-dated
the remains at 40,000 years old and wrote up their description in the
Sept
12
Proceedings of the National Academy of Sciences. The original
Neandertal skeletons had been found in 1856, three years before Darwin
published the Origin of Species, but the cave had been destroyed
and the site forgotten by 1900. These authors report finding and
excavating the original site over the last few years, and finding bones
that matched the original Neandertal Man.
They also did mitochondrial DNA analysis on fragments and determined that
at least three individuals were represented.
Nature
Science Update posted a summary of the find.
Neandertal man made a bigger hubbub in the
late 1800s and early 1900s. Now, it can be claimed they were fully
human, contemporaneous with and not ancestors of modern man.
Neandertals were
interfertile with modern humans,
cared for one another, and
had good brains and hunting skills.
Human paleoanthropology is in such a state of disarray these days that
Neandertal Man is a little more than a footnote on debates over much bigger
questions. Take the radiocarbon dates with a grain of salt, too;
they are subject to unverifiable assumptions about the equilibrium levels
of atmospheric carbon-14 in the unobservable past.
Next headline on: Early Man.
Darwin Bounced the Ball, Others Took It and Ran 09/13/2002
In the Sept.
13 issue of Science, Edward J. Larson gives high marks to Janet
Brownes new biography of Charles Darwin, The Power of
Place (vol. 2). In this second volume, she tackles the complexities
of Darwins later years. Most are familiar with the youthful
Darwin, The Voyage of the Beagle and The Origin of Species,
but Larson feels the writings of his mature years are more revealing and
relevant to todays issues in biology. Apparently Darwin
worked compulsively tying up the fraying ends of his evolutionary
theory, particularly the causes of variation and the processes of
inheritance. Browne presents a Darwin of many irreconcilable
faces, a lion on the world stage of science, yet petty and
withdrawn around his estate. Larson describes his later writings
(emphasis added):
In them, Darwins fertile mind bore into such critical issues as
the evolution of human morality and consciousness, the impact of
inbreeding (cousin marriages were a particular concern) [Ed. note: Charles
Darwin had married his cousin Emma, a Christian], the
accumulated effect of small agency, and the power of sexual
selection. Along the way, Darwin gradually lost what was left of
his spiritual beliefs and, in his own gentle way, adopted the
materialism of Huxley and Ernst Haeckel. His thinking on such
matters remains highly relevant. For example, Darwins 1869
Descent of Man should be required reading for anyone interested in
evolutionary psychology. Brownes biography gives vital
context to Darwins later work, detailing his brilliance as well
as his biases and integrating the scientific with the social. Her
Darwin is knee-deep in Victorian sexism, racism, and classism, and he
sinks deeper with age.
While Darwin battled his illness and wavered between various obsessions,
the debate he had started about origins took on a life of its own.
Interestingly, though the Origin avoided the origin of life and
the evolution of man, those two issues became the most vigorously
debated in Victorian society. Larson writes:
These two issues (humans and life) soon became the focus of the
scientific and popular debate over origins, with Darwin only
reluctantly joining it. Wallace, Huxley, Haeckel, and Charles
Lyell (among others) featured prominently in the widening debate.
Browne follows the trail of this debate where it leads, even when
Darwin is temporarily left behind. She ceases only when Darwin
dies at age 73, with the debate still raging. As long and dense
as The Power of Place is, I wanted it to continue following the
disputes, Darwin or no Darwin. By this point in Brownes
biography (as in his life), the country squire of Downe had become
secondary to the debate that he launched a quarter century earlier.
Thus Darwins defenders took the ball and ran with it, driving
the game into wider circles beyond just the origin of species
until it became a full-fledged materialistic philosophy of everything.
How ironic that the very evidences Darwin
most drew on (artificial selection, variation among pigeons and finches,
etc.) are irrelevant to major transformations, his own theory of
hereditypangenesiswas soon debunked, and his beliefs about
human evolution were racist. Haeckel, also an extreme racist, put
forth his fraudulent drawings of embryos
to lend an air of scientific respectability
to Darwins theory a fraud not fully denounced till 1997!
Darwinism was a wild
extrapolation beyond the evidence.
Darwin hoped that more evidence would be forthcoming.
The fossil record (as he himself admitted) was full of gaps that argued
against his theory, and organs of extreme perfection (like the eye) defied
detailed explanations by natural selection. Nothing has changed.
Worse, Darwin and
his defenders knew nothing about molecular machines at the foundation
of life, the cell, present in all their irreducible complexity in the
very simplest and humblest of organisms. Yet here we are, 143 years
later, with the materialist philosophy dominating the scientific
establishment with a vengeance that censors all nonconformists.
The blood of 100 million people, meanwhile, testifies to the horror of
running a world according to the principle of survival of the
fittest. What a sobering lesson on the power of ideas that go
far beyond the evidence.
Next headline on: Darwinism.
Genetic Code is Even Parity 09/12/2002
Did you ever learn about even and odd parity in computer class?
If so, you know that parity bits are often added to computer codes to
reduce errors. If the receiving end reads a byte that is odd
when it is supposed to be even, it knows there has been an error.
Dónall Mac Dónaill, a chemist at Trinity College Dublin,
thinks that DNA uses this technique in the genetic code.
He asked why, of all the possible nucleotides, DNA only
uses A, C, T, and G. Examining the molecules, he noticed that
these four seem to have even parity.
This makes them very unlikely to pair with the wrong base.
An Oxford computational chemist thinks this is a potentially fruitful concept:
It is a novel idea which should provoke others to explore aspects
of informatics in the genetic code, says Graham Richards.
The story is summarized on
Science
Now, and also on Mac Dónaills website,
and Nature
Science Update explained the idea on their site on Sept. 18, emphasizing
that The consequences of wrongly read or copied information can
be disastrous. Malfunctioning genes can cause diseases and
defects.
Bill Gates once said that DNA was like software, only more complex than
anything we have been able to produce. In the film
Unlocking the Mystery of
Life, Stephen Meyer remarks that this is a very instructive
observation, because we know that Bill Gates does not hire wind
and erosion to design his software; he employs software engineers.
Codes with error-correction like parity built in are hallmarks of
intelligent design. There is no instance anywhere of a code
being produced without intelligence. On what basis, other than
faith, can Graham Richards say the following?
Instinctively, one feels that the DNA code should have evolved
systems to minimize errors. Mac Dónaills work shows how
this could have been achieved. Similarly, Nature Science
Update attributes this wonder to natural selection.
Next headline on: The Cell.
Next headline on: Intelligent Design.
The Spliceosome: The Most Complex Cellular Machine Yet 09/12/2002
A molecular machine with 4 RNAs and 145 proteins: thats
the spliceosome, writes a team of Harvard biochemists in
September 12
Nature. Its job?
The precise excision of introns from pre-messenger RNA is performed
by the spliceosome, a macromolecular machine containing five small
nuclear RNAs and numerous proteins. Why higher organisms
have so many introns (non-coding regions of DNA) and smaller exons
(coding regions), and how the exons are joined, is on the cutting
edge of DNA research. Formerly considered junk DNA,
the introns seem to play an essential role in gene expression.
They also may provide flexibility for coding regions to join in
multiple ways, extending the information content of the DNA.
In any event, the splicing of exons together correctly has little
tolerance for error, and the spliceosome helps ensure that an
accurate messenger RNA gets built before being sent to the ribosome,
where the protein product will be assembled.
...we identify 145 distinct spliceosomal
proteins, they announce, making the spliceosome the most complex
cellular machine so far characterized. Furthermore, the
authors find that this machinery is highly conserved (unevolved) between
yeast and metazoans [multicellular organisms],
including humans:
The potentially greater complexity of the human spliceosome is not
unexpected in light of the vastly greater complexity of splicing in
metazoans compared to yeast.
Indeed, most metazoan pre-mRNAs contain multiple introns,
the introns are typically thousands of nucleotides,
and the splicing signals are weakly conserved.
Superimposed on this complexity is the high frequency of alternative splicing,
which is in turn further complicated owing to regulation.
Thus, many of the metazoan-specific proteins may play roles in the accurate
recognition and joining of exons.
Another paper by German biochemists in the
same
issue of Nature announces a newly-found
role of a chaperone protein named L23. This protein
sits at the exit tunnel of the ribosome and forms a docking station
for other chaperone proteins, which then grab the emerging polypeptide and
fold it properly into its unique shape to become a functioning protein.
In the following weeks issue of
Nature (Sept 19), Canadian scientists
found evidence of introns and splicing machinery in a primitive
eukaryote, adding more evidence that spliceosomal introns
are likely to have arisen very early in eukaryotic evolution.
Here we see another complex molecular machine,
composed of nearly 150 coordinated parts, that operates with skill
and precision.
Spliceosomes undergo multiple assembly
stages and conformational changes during the splicing reaction,
say the authors, indicating that these machines have many moving
parts. They conclude with an acknowledgement that the cell is
a veritable factory of complex machinery:
The observation that the spliceosome
is associated with numerous proteins that function in coupling splicing
to other steps in gene expression provides compelling evidence for the
emerging concept of an extensively coupled network of gene expression
machines.
Here again we notice in this paper, that the more that biological complexity
is described, the less speculation one can find about how all this
complexity evolved. Nobody seems to want to touch that question with
a ten-foot polypeptide.
Next headline on: The Cell and Biochemistry.
Next amazing story.
President Bush Points to Creator As Source of Human Value 09/11/2002
In his special address from Ellis Island on the first anniversary of the 9/11 terrorist attacks,
President George W. Bush reminded Americans that our belief in the Giver of life
separates our values from those of the terrorists, who treat people as expendable in
the pursuit of power:
The attack on our nation was also attack on the ideals that
make us a nation. Our deepest national conviction is that every life is precious, because
every life is the gift of a Creator who intended us to live in liberty and equality.
More than anything else, this separates us from the enemy we fight. We value every life;
our enemies value none not even the innocent, not even their own. And we seek
the freedom and opportunity that give meaning and value to life.
Text and video of President Bushs remarks can be read at the
White House website.
By implication, this means philosophies opposed to creation
devalue human life. But what about Islamic extremists, who believe Allah created
man, and yet showed utter disregard for human life in the terrorist attacks? The
difference is that the God of Scripture is both righteous and loving. He
teaches us to love our enemies, pray for those
who persecute us, and do good to all men. Jesus set the example of laying down His life
for mankind. He also taught that where the Spirit of the Lord is, there is liberty.
Islam, by contrast, has sought to conquer by the sword, and
its extreme adherents chant death to all who will not submit to their dogma. It also
generates selfishness like that of hijacker Mohammed Atta, who according to
WorldNetDaily
appeared to be lusting after his promised 70 virgins as he packed his suitcase for the
plane he was to fly into the World Trade Center. Christianity teaches us to deny
our selfish lusts and work for the good of others. So it is
not just belief in a Creator per se that makes the difference in valuing human life; it is
knowing the true Creator, who is holy and righteous, loving and merciful, and who created
us in His image. To discern the
followers of the true Creator, Jesus made it clear, You shall know them by their
fruits. The fruit of terrorism, produced by an evil tree, is forever etched in our minds.
Other differences between the God of Islam and the God of the Bible
were pointed out Sept. 6 on Chuck
Colsons Breakpoint.
As for atheists and materialists, it goes almost without saying that denial
of creation provides no foundation for valuing human life; if no purpose or direction produced
humankind, we are no more worthy than snail darters or mosquitos. The fruit of that tree
produced communism and Naziism and the slaughter of 100 million human lives. We applaud
President Bush
for making the point that creation is the foundation for human dignity, and also for
supplying Biblical allusions throughout his speech, ending with, And the light shines in
the darkness, and the darkness will not overcome it (John 1:5).
Next headline on: Politics.
Next headline on: Bible.
Remembering 9/11: Download and print our
patriotic poster, showing an American
flag with Mt. Whitney, tallest peak in the 48 states.
How the Peacock Got Its Tail: A Tormented Just So Story 09/10/2002
How did the peacock get his tail? It sounds like a Just
So story, but its a question that has tormented zoologists
for more than a century. Thus begins Sanjida OConnell
writing in The
Independent (London), echoed also on
National
Geographic News. After reviewing the history of tormented
zoologists stories since Darwin, she zeroes in on the recent
theory of French ornithologist Anders Moller, who explains the tail
thus: peacocks are walking billboards advertising their health
and status. Moller related tail ornamentation to production
of immune cells. Presumably, the peahen knows how to read the
billboard that the better the tail, the better the males immune
system, and the better the chance her chicks will survive.
Although there are still many unanswered questions, concludes
OConnell, scientists are moving closer to finding out how
the peacock got his tail.
Note: Just-So story is a reference to
Rudyard
Kiplings Just So Stories for children, in which
he tells comical tales about how the camel got his hump, how the
leopard got his spots, and other fabricated answers to common
kids questions, based on imagination, not fact.
We thought up some of these unanswered
questions: why doesnt
the male evaluate the females immune system doesnt he
care as much about passing on his genes as the hen does?
Does a peabrained peahen know what an immune system is?
Why should more immune cells correlate with a bigger, more colorful tail?
Why dont all birds evolve more ornamentation?
Why havent evolutionists figured this out after 150 years?
If this isnt a Just-So story, what is it?
What is the best way to end the torment?
Next headline on: Birds.
Next dumb story.
Natural Selection: Neutral or Directional? 09/10/2002
Three scientists at Indiana University believe they have demonstrated
statistically that natural selection is directional for phenotypes.
Writing in the Sept. 10
Proceedings
of the National Academy of Sciences, they examined 572 traits from
86 studies using a new quantitative trait loci (QTL) sign test.
Instead of seeing neutral or antagonistic selection, they saw directional
selection strongest for life history traits, less strongly for physiological
and morphological traits, and weakest for developmental traits.
Here is another paper trying to defend
Darwinism; does it succeed? If Darwinian evolution were totally
wrong, these data could still be explained by some other theory, but no
other theory is even on the table for discussion. Only evolutionary
explanations are considered, whether neutral selection or directional
selection. Whats most interesting, however, are the damaging
admissions in their opening paragraph about the lack of evidence for
evolution in both living and fossil organisms (emphasis added):
It is often lamented that studies of present-day populations
provide only the briefest snapshot of evolution and tell us
little about the evolutionary forces that have shaped a particular
trait or organism in the past. Although ancestral
phenotypes can be reconstructed with phylogenetic methods or directly
determined from fossils, neither approach reveals the evolutionary
processes that created these phenotypes. Even if these
historical data could help, there is considerable uncertainty
associated with the reconstruction of ancestral character states,
and a fossil record is missing for most taxa and incomplete for
others. As a result, a direct link between the action of
microevolutionary forces detected in studies of contemporary
populations and patterns of speciation and macroevolution has been
difficult to make, yet this is a central problem in
evolutionary biology.
They proceed to make their case for directional
evolution, but their results conflict with those of other evolutionists.
For instance, developmental traits (the latest Big Hope for rapid
evolutionary change) show very weak selection by this QTL method.
Selection for life history traits show up strongest, but for morphology
(outward appearance), only moderately.
Their results conflict with currently popular
theories of neutral selection (that divergence is random, not
necessarily adaptive); isnt natural selection supposed to be
directionless by definition? They acknowledge several possible flaws
or weaknesses in the method, such as not gauging the magnitude of an
individual QTL, and possible bias in the choice of traits to measure.
At best, their results are only implied, and have no explanatory value
regarding how adaptive traits would arise in the first place.
Despite the confident-sounding title of their paper, Directional
selection is the primary cause of phenotypic diversification,
their concluding sentence seems more like a statement
of faith than scientific proof:These latter considerations reinforce
our earlier conclusions that Darwinian selection largely accounts for the
astonishing diversity of phenotypes we see. This could be
translated, We think we have
found statistics
to prop up our a priori
assumptions that the wonders of creation,
from eagles eye to babys cry, are
explainable by impersonal
natural forces.
Next headline on: Darwinism and Evolutionary Theory.
Were Evolving Fatter 09/09/2002
Andrew Prentice told the British Association that humans are
facing one of their biggest challenges yet: the evolution of
obesity, reports the
BBC
News. The question is, since evolution is such a slow process,
will humans survive obesity-related diseases until
evolution accommodates fatness into the human profile?
Fat chance. Try self-control:
just say no to the refrigerator, and to evolutionary
storytelling. (Self-denial and discernment are two very
unDarwinian traits.)
Next headline on: Darwinism and Evolutionary Theory.
Next dumb story.
Life Lands Much Earlier 09/09/2002
According to A. R. Prave writing in the
September
issue of Geology,
the first bacteria colonized the land over a billion years ago,
hundreds of millions of years earlier than previously thought.
He found wrinkly rock in Scotland that led him to this conclusion.
A picture of the rock and summary of his hypothesis can be found on
the BBC
News.
The storytelling of evolutionists is
quite entertaining: A billion years ago the Earth was undergoing a
series of cataclysmic changes. The composition of the atmosphere
was fluctuating wildly. Climatic conditions went from extreme to
extreme. Primitive life had already taken hold on the Earth and
consisted of single-celled organisms like bacteria and was confined to
the vast seas that even then covered most of the globe...
Is this the BBC eyewitness news, or did we get Monty Python by mistake?
Next headline on: Geology.
Next headline on: Fossils.
The Big Crunch Is Back 09/09/2002
The universe might collapse in a final big crunch after all, thinks
Stanford cosmologist Andrei Linde, resurrecting an idea that had
fallen into disfavor.
New
Scientist reports that Linde feels dark energy might reverse in
10 billion years, even though now it appears to be accelerating the
universe outward. Martin Rees of Cambridge is not convinced:
Since we have no idea what the dark energy is, such scenarios
cannot be ruled out, he says. But ultra-long-range
forecasts are all exceedingly speculative.
Linde is the cosmologist who gave us
chaotic inflation, with alternate universes bubbling off in all directions
forever. How convenient that he cannot see them, or will
not be around to see if his big crunch prophecy will be fulfilled.
It seems dark matter was not enough fun for the cosmologists; now they
have dark energy
to play with, too. Since matter and energy are
equivalent according to E=mc2,
this means you can transform one ghost into another.
Next headline on: Cosmology.
Next dumb story.
More Complex Than Anyone Ever Dreamed: Cell Quality Control 09/09/2002
According to NewsWise,
biochemists like Lynne Maquat at the European Molecular Biology
Organization are looking into tinkering with the cells quality control
system to see if certain error-correcting mechanisms can be switched off. This might provde a means of testing new drugs or treating genetic
diseases. In discussing the work, the article uses superlatives to
describe how the cell usually corrects mistakes (emphasis
added):
...mistakes, which are eliminated by dogmatic quality control. ...
mRNA molecules are like messengers in a factory, taking a blueprint and
then heading to the floor and gathering a team to get the job done.
Sometimes, though, the mRNA doesnt quite get the message right.
One common error happens when an mRNA molecule harbors a stop
or nonsense signal before a protein has been completely
made. Enter the bodys quality-control system. ...
nonsense-mediated decay targets what scientists call a pioneer round
of translation, during which the body actually produces a kind of
rough draft of a protein before giving the go-ahead to the mRNA molecule
to begin mass production. ... mRNA puts together an extensive tool kit
of molecular machinery to evaluate whether it should pass muster
as a legitimate template for proteins. ...
The identification of such tool kits, groups of molecules
working together to achieve a task, keeps hundreds of lab groups like
Maquats around the world constantly busy. Far from the
simple and bland DNA to RNA to protein sequence of events that many
people learn in high school, nearly every cell in the body embodies
an incredibly complex construction site where tens of thousands of
proteins work in tandem, snipping and cleaving molecules, removing
introns and splicing together exons in various
combinations, recruiting molecules to the site, and ferrying molecules
over to ribosomes for assembly into proteins. ... Theres an
incredible amount of activity in a small space, says Maquat,
who is secretary/treasurer of the RNA Society and who organized a
meeting this summer on the topic of mRNA decay for the Federation of
American Societies for Experimental Biology.
A single gene can result in many different proteins depending
on how its encoded precursor mRNA is processed; we now know that more
than half of human genes can make more than one protein. But with
this wonderful flexibility often comes mistakes. The situation
is turning out to be more complex than anyone ever dreamed. The
degree of RNA processing that the cell undertakes is truly
amazing. The idea of trying to bypass the bodys mRNA
surveillance system is formidable. Maquat notes that the
system is necessary for survival, and that without it, bad mRNA
would create even more instances of disease.
Though a formidable prospect, she and her team hope that by allowing some
mRNAs to sneak past the quality control guards, some genetic diseases might
be treatable, and the process might open up new vistas for
pharmaceutical companies.
The statements above speak for themselves.
How did this tightly-integrated error-correcting system originate?
Surely any thinking person would have cold shudders trying to believe that
undirected, purposeless natural causes could produce dogmatic
quality control and coordinated function of tens of thousands
of complex parts. Trying to imagine tiny molecules holding an
inspection to determine whether a rough draft will pass muster, or
sending a protein to the recycling plant if it has just one typo, is
astonishing. Its hard to conceive of such things even being
possible: molecules have no eyes or brains, and work most often in the
dark. Yet here we are, reaping the benefits moment by moment of
the cells quality control superheroes.
Next headline on: The Cell and Biochemistry.
Next amazing story.
PhDs Take On Scientific American 09/06/2002
Dr. Bert Thompson (microbiology) and Dr. Brad Harrub (neurobiology/anatomy)
have provided a detailed rebuttal to John Rennies Fifteen
Answers to Creationist Nonsense article printed in the
June 17 Scientific American.
The rebuttal is provided in full on the
Apologetics
Press website. Also available is a full response to the
July 29 U.S. News and World Report
cover story on evolution, also on
Apologetics
Press.
Fairness demands a full discussion of both
sides. Scientific American allowed no rebuttal, and U.S.
News had just a biased acknowledgement that critics of Darwinism
exist. We encourage readers to be familiar with the arguments on
both sides; thats why we always provide the links to the original
sources.
Next headline on: Darwinism and Evolutionary Theory.
Next headline on: Intelligent Design.
Photo 09/06/2002: Click
Here for the Hubble Space Telescopes latest press release about a
stunningly beautiful and
theory-challenging
ring galaxy named
Hoags
Object.
Next headline on: Stars.
Peering Into a Tiny Machine on Which the World Depends 09/06/2002
Sometimes its the little things that count. World food supply,
ecology, biodiversity are big things, but they depend heavily on a tiny
molecular machine called nitrogenase. This machine is worth its
weight in gold and is the envy of chemical and structural engineers, but
it makes its home in the lowliest of organisms, little bacteria that
live around the roots of plants. Its job? To break apart the
triple bonds of
atmospheric nitrogen molecules and make them available as ammonia to plants,
which use this valuable fertilizer to produce proteins for the entire
food chain. Molecular nitrogen (N2), though
plentiful in the atmosphere (78%) is useless until fixed
by breaking it apart and combining it with hydrogen as ammonia
(NH3). Given plenty of water, nitrogen is the usually
the limiting factor in agricultural food production.
About half the worlds ammonia is produced by these tiny machines.
A little is fixed naturally by lightning, indicating the high energy
required. The rest, manufactured by man in the expensive Haber-Bosch
process, consumes an estimated 1% of the worlds annual energy
output.
Those triple bonds are tough nuts to crack! How do the nitrogen-fixing
bacteria do it so efficiently, at ambient temperature and pressure?
Whoever figures this out and imitates the process will enrich the
worlds food supply and save trillions of dollars.
Scientists have been sharpening the focus more and more
on this tiny protein machine, nitrogenase. They knew that precisely
placed metal ions (iron, molybdenum) form a critical structure in the
heart of the enzyme. They knew other proteins spend ATP
to donate electrons to the nitrogen. Now, writing in the
Sept. 6
issue of Science, a team of American scientists has sharpened
the focus down to 1.16 angstrom resolution. One surprise was that
they detected another atom, possibly atomic nitrogen, deep in the
heart of the active site. How it gets there, and what role it plays,
is still a mystery, but this is another important piece of the puzzle.
In the same issue of Science,
Barry
Smith summarizes the work and concludes, Once again,
nitrogenase has surprised us.
Nitrogenase is a large and complex enzyme,
composed of several subunits, whose function depends on the precise placement
of specific metal atoms and electron donors. Its exciting
to see a biological secret nearing solution, but amazing to ponder how
a simple bacterium, living underground by the roots of plants, figured
out how to do what man with all his technology cannot do without great cost
and difficulty. Next time you down a salad or burger or steak,
realize that it was made possible by a sophisticated molecular machine
operating humbly in one of natures simplest organisms.
See also David Demicks engaging look at this molecular
sledgehammer in the
March-May
issue of Creation magazine.
Next headline on: The Cell and Biochemistry.
Next headline on: Plants.
Next amazing story.
Elegant, Intricate, Remarkable Describe Cell Channels 09/05/2002
Gary Yellen of Harvard, in a review article in the
Sept 5 Nature
waxes prosaic while describing the voltage-regulated channels
in cell membranes: with words like remarkable and
elegant he describes the ongoing research into
the gatekeepers of the cell:
The remarkable optimizations of these channels for permitting rapid
and selective ion flow across the hostile barrier of the cell membrane
are now mostly apparent, as is the basic repertoire of conformational
changes used to gate this flow. We now see the outlines of two
general approaches used by intracellular sensor domains to manipulate
the channel gates, and some tantalizing details of the transmembrane
voltage sensor itself.
The potassium channel is capable of passing millions of potassium ions
per second through its selectivity filter while keeping out
sodium ions, smaller and with the same charge. How it does this
is on the leading edge of research. Apparently several mechanisms
are involved. The channel is able to mimic the arrangement
of water molecules that naturally assemble around the ions, and guide them
through the channel single file. Also, parts of the channel rapidly flex
open and closed in response to the ions or to voltage sensors.
A delicate balance of electric charge is required to attract the ions yet
prevent them from sticking in the channel. Several ions at a time
can be passing through, each validated by the selectivity filter.
All this is regulated by voltage sensors, still poorly understood.
Cell signalling and nerve impulse transmission rely on the quick and
accurate electrical transduction performed by these tiny gatekeepers.
An additional wonder is how the channels cooperate with each other, so
that an electrical impulse lasting just a few milliseconds can be transmitted
at a speed of several meters per second from your toe to your brain.
Electricity plays an unavoidable role in biology, Yellen
opens his article, as he describes how animal cells have made the
management and production of electrical signals into a high art.
As usual, the higher the praise of the
intricate designs in the cell, the less talk about evolution.
There is no mention anywhere in this paper about how this intricate
machinery might have evolved without intelligent design.
See also our earlier reports about the potassium
channel, the sodium channels and
the water channels.
Next headline on: The Cell.
Next amazing story.
The Spin on Asteroid Spin 09/05/2002
Why do Koronis asteroids have a similar spin rate and tilt?
This puzzle is examined by Stephen M. Slivan of MIT in the
Sept 5 Nature. He calls
it a new challenge in understanding asteroid collisional
processes. It is thought that all 200 members of the Koronis
family formed from the same breakup of a larger body, but current
models would yield random spin orientations:
It is difficult to understand how preferred spin vector obliquities and
rotation rates could exist in the context of formation by catastrophic
fragmentation and disruption of a parent body, followed by at least
109 yr of collisional evolution in the main belt.
Current models of family formation predict that the memory of spin of
the original unshattered parent body is lost, and existing models of
spin angular momentum suggest that collisional evolution randomizes
asteroid spin vectors regardless of their initial orientations,
although the absolute timescale is uncertain.
He considers two possible explanations, secondary fragmenting and
thermal or non-thermal dynamical spin stabilization, but neither seem to
explain the observations. He leaves it as an unsolved mystery,
wondering if other asteroid families show similar spin clustering.
A summary of the paper is provided by
Space.Com which quotes Slivan as saying the finding hits
you in the face.
Perhaps a logical explanation will be
found, but it does seem far-fetched to believe these small bodies would
maintain their spin rates and obliquities for billions of years in a
pinball field of gravitational influences.
Again we see that the age is the untouchable parameter.
Its better to leave a mystery unsolved than to question tradition.
Next headline on: Solar System.
Next headline on: Dating Methods.
Darwinists Debate the Evolution of Presbyterians 09/03/2002
How does evolution explain group behavior, like religion?
Thats the subject of a
book review
in Science (08/30) by Michael Ruse, one of
todays leading evolutionary philosophers. Ruse examines
David Sloan Wilsons new book Darwins Cathedral:
Evolution, Religion, and the Nature of Society with both praise
and disdain. First, he acknowledges a rift between Darwinists
regarding the explanation for altruistic
behavior.
Why do some individuals sacrifice their genes for the group, producing,
for example, nonreproductive castes in ant and bee colonies?
In human society, how did natural selection produce religion?
The mainstream camp of Darwinists (Richard Dawkins, Michael Ruse, et al)
explain these by individual selection, i.e., that somehow these social
constructs benefit the individual.
Their rivals, the group selectionists or sociobiologists (W. D. Hamilton,
John Maynard Smith, David S. Wilson et al),
on the other hand, see some sort of group selection at work.
Wilsons new book is a promotion of the latter view, and he uses,
of all things, John Calvins 16th-century Geneva theocracy
as a case study. Ruse, though respectful of
Wilsons presentation, is not impressed:
I want hard figures on birth patterns before and after Calvin, and I
want to know who had kids and who did not. I want these figures
correlated with religious practice and belief. Then and only then will
I start to feel comfortable.
But let me not end on a negative note, because I feel a bit mean
criticizing an evolutionary biologist for going outside his own field
to matters of church history. So let me repeat that I applaud the
approach taken by Wilson, and I urge you to read Darwins
Cathedral. I think Wilsons answers are wrong, but much more
important is the fact that his questions are right.
Ruse entitled his review, Can Selection Explain the
Presbyterians?
All non-atheists should take note.
The evolutionists want to explain everything in human society
in terms of natural selection, even religion. That is not news,
but several noteworthy observations can be made from this book review.
The major one is that there is no accepted evolutionary explanation for
altruism; the fact that there are two warring camps across a wide rift
that has been continuing for decades demonstrates that. Another is
that Darwinians tread lightly when criticizing the brethren.
Ruse sounds like he secretly thinks Wilsons explanation is
ridiculous, but dare not publicly call him
a fool for fear of providing ammunition to the creationists.
Finally, notice the patronizing disdain for religion that underlies even
Ruses call for respect for it (emphasis added):
... a distinctive
and admirable feature of the book is that Wilson does not (as so many
evolutionary biologists are wont to do) prejudge the worth of
religion before he starts. He finds it a notable feature of
human societies and, as such, demanding respect if not agreement or
support.
Thats respect looking down from an ivory tower,
no more reverent than admiring an ant colony.
There is no respect for the ideas contained in
John Calvins Institutes or for the teachings of Jesus Christ;
instead, the Darwinists, like disembodied aliens spying mankind from
suspended platforms, seek to interpret the organisms below in terms
of natural selection whether men or ants, whether wasps or WASPs
(white Anglo-Saxon Protestants). The hypocrisy here is that they
never do that to themselves! They never interpret their own
controversies in terms of selection, because that would undermine the
very credibility of Darwinism itself. If evolutionary theory is
the product of natural selection, they have no way of knowing that
natural selection or theories, debates, or ideas even exist.
Next headline on: Darwinism and
Evolutionary Theory.
Evolution Produces a Radio Receiver 09/03/2002
Radio emerges from the electronic soup claims a report in
New
Scientist last week. Two researchers at the University of
Sussex applied an automated design program that used an
evolutionary process and out popped a radio.
Actually, it cheated; it borrowed signals coming from a nearby computer
as the oscillator, but in doing so, acted like a radio receiver.
This is intelligent design, not evolution.
The programmers supplied all the information and guidance necessary.
Treating each switch as analogous to a gene allowed new circuits to
evolve. Those that oscillated best were allowed to survive to a next
generation. These fittest candidates were then mated by
mixing their genes together, or mutated by making random changes to
them. So success at oscillation was the criterion to define
fitness. No such programmer or criterion is permissible in
evolutionary theory, which is supposed to be unguided, impersonal,
aimless, and pointless. You can steer outcomes through a maze of
random mutations if you have a goal and reward success. This
experiment has nothing to do with biological evolution, and everything
to do with intelligent design. But the design here was not very
intelligent: the reputed radio only blindly picked up signals from
elsewhere and ferried them as output. Garbage in, garbage out.
Next headline on: Darwinism and Evolutionary
Theory.
Next headline on: Intelligent Design.
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