Posted on 09/16/2009 9:03:13 AM PDT by GodGunsGuts
Fresh Fossil Feather Nanostructures
by Brian Thomas, M.S.*
Bird feathers can contain pigmentation for a wide range of colors, with specific molecules reflecting certain hues when light touches them. They also can display “structural” colors, where the thicknesses of layers of cells and connective tissues are fine-tuned to refract certain colors.
Scientists recently described structural coloration that is still clearly discernible in well-preserved fossil feathers. Why do these fossil feathers have their original cell structures laid out in the original patterns if they are millions of years old?
In 1995, paleontologists Derek Briggs and Paul Davis provided an overview of fossil feathers from the 40 or so places on the globe where they were known to exist.1 Among their findings was that 69 percent of feather fossils are preserved not as impressions, but as carbon traces. This was verified by comparing the proportions of carbon in both the surrounding carbonaceous rock and the fossil within it, to the proportions of organically-derived carbon from the same items. They found that there was more organic carbon in the fossil than in the stone.
At that time, the researchers thought the carbon came from bacteria that had degraded the feather material and then remained placed in the feather’s outline. But 13 years later, Briggs and other colleagues showed clear evidence that these “bacterial cells” were actually melanosomes―the same microscopic, sausage-shaped, dark pigment-containing structures in today’s bird feathers―from the original feather.2
This means that the organic carbon in the melanosomes somehow avoided decay for millions of years, which contradicts “the well-known fact that the majority of organic molecules decay in thousands of years.”3
Briggs and his colleagues recently described fossil feathers from the German Messel Oil Shale deposits, which are famous for their remarkably well-preserved fossils. These not only contained organic carbon from melanosomes (not bacteria), but the melanosomes were still organized in their original spacing and layering. Thus, the “metallic greenish, bluish or coppery” colors that can be seen from different viewing angles, producing an iridescent sheen, may very well be similar to that of the original bird’s plumage.4
Biologists already know that “in order to produce a particular [structural] colour, the keratin thickness must be accurate to within about 0.05 μm (one twenty thousandth of one millimetre!).”5 Although the keratin had decayed from these fossil feathers, its layers of melanosomes remained laid out in similarly precise thicknesses. Thus, not only was the color preserved, but the melanosomes were still organized to within micrometers of their original positions.
Evolutionary geologists maintain that the Messel Shale was formed 47 million years ago. But with these colorful feather fossils—which retain not only the original molecules inside their original melanosomes, but also the architectural layout of these structures—evolutionists must invent some kind of magical preservation process that simply isn’t observed in the laboratory or in nature.
Without the assumption of millions of years, however, the fossil data begin to make much more sense. Fresh-looking fossil features point to a young world.
References
* Mr. Thomas is Science Writer at the Institute for Creation Research.
Article posted on September 16, 2009.
At a rapidly slowing speed at first. I'm not really sure on where we are in this universe though. The middle, somewhere near the edge? Somewhere in between? We really have no way of knowing. Our sense of "time" and a "day" didn't really begin until creation of the sun in our solar system on the third(?) day however. And our biblical age isn't necessary the age of the earth. The biblical age starts with the creation of Adam, so the biblical age is really just the age of mankind. We really have no idea how long a "day" was on the first (day1)of creation, and the bible does word those first "days" differently. Now a "day" is in relation to one rotation of the earth using our sun as a reference piont.
Except there's no evidence that light has slowed down. We know perfectly well why there's a red shift and a blue shift, and it's not because the speed of light is changing.
If it's on Star Trek, it must be true! I love the kinds of "facts" you creationists use.
Do you even know what the word dinosaur means?
No one has ever claimed to have found a 300 foot tall dinosaur either. You really are an ignoramus when it comes to paleontology.
The theory of the red shift and blue shift is in relation to the slowing of the expanding universe, which will eventually start to collapse back into itself, or so the theory goes.
That doesn’t address the initial high rate of expansion however. That’s just deals with what we observe now from this vantage point.
http://www.age-of-the-sage.org/evolution/messel_pit.html
Dinosaurs are big lizards. The term dinosaur literally means "terrible lizard."
A "few bones." This guy has horns. Goats have horns. Maybe triceratops was just a 30 foot long, 10 foot tall, 12 ton goat.
The people who should be embarrassed are the howl-at-the-moon crazies who (like Richard Dawkins) acknowledge that biology is the study of super complex bio-nano machines that far surpass human-level technology and give every appearance of having been designed by a superior intelligence, but then turn around and try to convince us that the obvious is all just a massive illusion created by Darwin’s mindless natural selection god. Now that’s embarrassing!
You have absolutely no idea what you're talking about. The universe is expanding ever-faster. It's not collapsing in on itself.
These light or frequency shifts are relative to the “speed” of light, so it does in fact prove that the speed of light changed, otherwise all light would be the same color because it’s speed- “frequency”- would be the same. We wouldn’t be able to tell which galaxies are further away than others.
Rocks have expiration dates?
Chicken and Egg.
The egg obviously came first. Eggs adapted for surviving on land (amniote eggs) evolved with reptiles. Some of those reptiles evolved into birds, which are loaded with reptilian characteristics. Then some of the birds differentiated into the group which includes chickens.
So, the egg came long before the chicken.
Anyways, all we have is theories, and theories aren’t facts or truth, just degrees of them depending on how many other “proofs” there are stacking up in it’s favor.
A truth leads to God however. Amazing how a bunch of Neanderthals who you think wrote the bible came to that conclusion thousands of years ago huh?
Really? last I heard it was slowing, but I don't really keep up with the ever changing evolution theory stuff. Maybe you mean accelerating to it's collapse. Depends on where you are standing i guess.
Neanderthals died out 30,000 years ago. They couldn't have written the Bible, nor does the Bible mention them.
No, no and no. You deseperately need to take Physics 101. We can easily explain and predict red shifts w/o needing the speed of light to change. The speed of light is a constant -- it is exactly the same regardless of how fast you or the object emitting are traveling.
""I shall destroy the wisdom of the wise and bring to nothing all the learning of the learned." 1 Cor.1:19
""The wisdom of its sages shall decay, the intelligence of its intelligent men shall be shrouded." (Is.29:14).
Seems to be decaying a lot these days
"Make no mistake about it: if any one of you thinks of himself as wise...then he must learn to be a fool before he can be wise. Why? Because the wisdom of this world is foolishness to God."
(1 Cor.3:18).
'Truth', said Jesus, is the word of God -- the Gospel of His Father.
DINOSAUR means literally “terrible (as in terrifying) lizard.” However, the Greek root meaning lizard is used in this terminology to mean merely reptile (any kind of reptile). For example, we have pterosaurs (flying reptiles).
Dinosaurs are members of the Order Archosauria (”ruling reptiles”) and are NOT lizards. They are not even just big lizards. Lizards belong to a different order, allied with snakes.
There are only four living orders of reptiles on Earth today: Archosauria (represented by the crocodilians); Squamata (snakes, worm snakes, and lizards); Chelonia (turtles); and Rhynchocephalia (represented by a single species, the Tuatara, from New Zealand).
It is too bad that so many popular books keep saying that the -saurus root means “lizard,” when actually in context it signifies reptile.
There is a similar word, greek root “ther”, which literally means “beast,” but which in scientific Greek signifies mammal.
Yeah, no, it's accelerating. And "evolution theory" [sic] is a biological concept. Biologists don't normally spend a lot of time looking at stars or thinking about cosmic expansion.
Maybe you mean accelerating to it's collapse
No. Just accelerating.Depends on where you are standing i guess.
Again, you probably should have paid a little more attention in high school.
Yet all 'evolutionary' evidence we see today is evolution towards extinction, not improvement. degradation, not betterment.
It's a wonderful theory, yet not a lick of evidence to prove it, in fact it all proves the opposite.
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