Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Archaeopteryx: X-rays shine new light on mystery 'bird'
bbc.com ^ | 21 May 2014 Last updated at 20:25 ET

Posted on 05/22/2014 2:17:38 PM PDT by BenLurkin

Using a new "camera obscura" technique - inspired by Leonardo da Vinci - scientists have captured some of the clearest ever images of Archaeopteryx.

For the first time, they can see the complete skeleton in 3D. Not just the surface outlines, but all the hidden bones and feathers too.

They hope to discover how "the first true birds" evolved from feathered dinosaurs and took flight.

And what's more, to answer a riddle that has puzzled palaeontologists for 150 years. Could Archaeopteryx fly, or not?

...

In the past, large fossil slabs were too bulky to be scanned in a synchrotron light source - a type of particle accelerator which generates high-energy X-rays.

But now scientists here are experimenting with a clever new trick, inspired by a very ancient and simple idea - the pinhole camera

... In a synchrotron, the pinhole system allows large fossils - too bulky to be rotated and scanned via conventional techniques (such as tomography) - to be captured in full by an extremely narrow X-ray beam.

"It's a beam that's only the thickness of a human hair. But extremely powerful. If you stood in front of it you would be killed," says Dr Paul Tafforeau, a palaeontologist at ESRF.

(Excerpt) Read more at bbc.com ...


TOPICS: Science
KEYWORDS: archaeopteryx; godsgravesglyphs; paleontology

Great. A chicken with teeth.
1 posted on 05/22/2014 2:17:38 PM PDT by BenLurkin
[ Post Reply | Private Reply | View Replies]

To: BenLurkin

Undoubtedly, that could fly! But only if you fermented up a batch of wild berries and distilled them sufficiently before happy hour!


2 posted on 05/22/2014 2:21:04 PM PDT by aMorePerfectUnion ( "I didn't leave the Central Oligarchy Party. It left me." - Ronaldus Magnimus, 2014)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

Looks like a turkey with mange.


3 posted on 05/22/2014 2:24:46 PM PDT by Jewbacca (The residents of Iroquois territory may not determine whether Jews may live in Jerusalem)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin
"Was he a little dinosaur running, climbing trees - or was he flying?

He probably could glide in any event.

a synchrotron... If you stood in front of it you would be killed

Synchrotron on kill.

4 posted on 05/22/2014 2:28:01 PM PDT by MUDDOG
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

Prehistoric yard bird.


5 posted on 05/22/2014 2:35:55 PM PDT by Free Vulcan (Vote Republican! You can vote Democrat when you're dead...)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin
Taller than a man, this chicken from hell could roller skate, sing the alphabet, and generally annoy the other dinosaurs. He was absolutely clueless of how to survive the asteroid impact, however.

6 posted on 05/22/2014 2:37:35 PM PDT by Telepathic Intruder (The only thing the Left has learned from the failures of socialism is not to call it that)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

Alhazen beat Leonardo to the optics involved a few hundred years earlier.


7 posted on 05/22/2014 2:58:23 PM PDT by JeanLM (Obama proves melanin is just enough to win elections)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin
Great. A chicken with teeth.

Some days the chicken eats you!

8 posted on 05/22/2014 3:00:02 PM PDT by TigersEye ("No man left behind" is more than an Army Ranger credo it's the character of America.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin
I wonder if the x-ray machine could be made into a weapon?
9 posted on 05/22/2014 3:12:46 PM PDT by AEMILIUS PAULUS (It is a shame that when these people give a riot)
[ Post Reply | Private Reply | To 1 | View Replies]

To: AEMILIUS PAULUS

We’d need one of the FRenginners to weigh in on it.

The answer may be that range could be increased by putting more feeding it the ray.

But, would it kill quickly enough to be useful?


10 posted on 05/22/2014 3:28:02 PM PDT by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both.)
[ Post Reply | Private Reply | To 9 | View Replies]

Comment #11 Removed by Moderator

To: BenLurkin

turkey-lurkey was right, the sky did fall, who knew,


12 posted on 05/22/2014 4:44:56 PM PDT by captmar-vell
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

13 posted on 05/22/2014 4:48:23 PM PDT by abb
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

“Nice to met you, (what did you say your name was...) Colonel Sanders!”


14 posted on 05/22/2014 4:49:09 PM PDT by 17th Miss Regt
[ Post Reply | Private Reply | To 1 | View Replies]

To: abb

Nice!


15 posted on 05/22/2014 5:12:19 PM PDT by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both.)
[ Post Reply | Private Reply | To 13 | View Replies]

To: StayAt HomeMother; Ernest_at_the_Beach; decimon; 1010RD; 21twelve; 24Karet; 2ndDivisionVet; ...
Note: this topic is from 5/22/2014. Thanks BenLurkin.

16 posted on 01/18/2015 1:03:21 PM PST by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
[ Post Reply | Private Reply | View Replies]

To: BenLurkin

Archaeoraptor Liaoningensis: Fake Dinosaur-bird ancestor

http://www.bible.ca/tracks/archaeoraptor-fraud-piltdown-bird.htm

The Missing Link that Wasn’t National Geographic’s ‘Bird Dinosaur’ Flew Against the Facts

http://www.arn.org/docs/pearcey/np_hespotlight0300.htm

many many more, its a hoax.


17 posted on 01/18/2015 1:29:58 PM PST by Mechanicos (Nothing's so small it can't be blown out of proportion.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

“It’s a beam that’s only the thickness of a human hair. But extremely powerful. If you stood in front of it you would be killed,”

I need this fore the neighborhood teenagers!


18 posted on 01/18/2015 2:12:17 PM PST by Dr. Bogus Pachysandra (Don't touch that thing Don't let anybody touch that thing!I'm a Doctor and I won't touch that thing!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Mechanicos

You must be joking.


19 posted on 01/18/2015 2:23:47 PM PST by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
[ Post Reply | Private Reply | To 17 | View Replies]

To: BenLurkin

Most likely a runner rather than a flyer.....


20 posted on 01/18/2015 2:25:13 PM PST by Hot Tabasco (I'm a man of no-color and proud of it.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

Nope:

The feather imprints of the London Archaeopteryx fossil specimen were forged. Evidence for this is that

- the feather impressions appear only on the slab, not on the counterslab.
- the surface texture is different between the feathered and unfeathered areas;
- slightly elevated “blobs” appear which are not always matched by depressions on the counterslab;
-the feathers show “double strike” impressions.
-Hairline cracks which pass through both bones and feathers could have formed by slight movements to the slab after the cement was in place.
- Under magnification, the limestone appears different in fossil and non-fossil areas of the specimen.
=Unknown material appears within the matrix in the fossil area.
= An x-ray chemical analysis showed chemical differences, including silicon, sulfur, and chlorine in the fossil area that were not present in the non-fossil area.

“These points indicate that the feather impressions were made by someone impressing feathers in a cement-like matrix that was added to the stone. Without the feathers, Archaeopteryx would be identified as the dinosaur Compsognathus, not as a transitional fossil.”

Sources
= Watkins, R.S.; Hoyle, F.; Wickramasinghe, N.C.; Watkins, J.; Rabilizirov, R. & Spetner, L.M., 1985a. Archaeopteryx - a photographic study. British Journal of Photography 132: 264-266.
-Watkins, R.S. et al., 1985b. Archaeopteryx - a further comment. British Journal of Photography 132: 358-359,367.
=Watkins, R.S. et al., 1985c. Archaeopteryx - more evidence. British Journal of Photography 132: 468-470.
-Hoyle, Fred, Wickramasinghe, N.C. and Watkins, R.S., 1985. Archaeopteryx: Problems arise — and a motive. British Journal of Photography 132(6516): 693-695,703.
= Hoyle, Fred and Wickramasinghe, Chandra, 1987. Archaeopteryx, The Primordial Bird, Christopher Davis, London.
-Spetner, L.M.; Hoyle, F.; Wickramasinghe, N.C. & Magaritz, M., 1988. Archaeopteryx - more evidence for a forgery. British Journal of Photography 135: 14-17.


21 posted on 01/18/2015 3:08:52 PM PST by Mechanicos (Nothing's so small it can't be blown out of proportion.)
[ Post Reply | Private Reply | To 19 | View Replies]

To: Mechanicos

Sorry. Not buying it.


22 posted on 01/18/2015 4:16:10 PM PST by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
[ Post Reply | Private Reply | To 21 | View Replies]

To: aMorePerfectUnion

How do you ‘evolve’ feather that would EVENTUALLY allow you to fly?

Unless you sprout a set of full wings, anything less would be a detriment to your health and safety

I’ve heard the same argument for evolution of eyes - a bump turns into a ‘shadow sensor’ which evolves into a hole then closes up to form a pinhole camera and then grows a covering which grows an eye..

But at the intermediate steps you would have a hole that collects dirt and prone to infections which would probably hurt, no?


23 posted on 01/19/2015 10:09:24 AM PST by Mr. K (Palin/Cruz 2016)
[ Post Reply | Private Reply | To 2 | View Replies]

To: TigersEye

Ancient turtles had teeth, too. Now, not so much.


24 posted on 01/20/2015 8:52:16 AM PST by pabianice (LINE)
[ Post Reply | Private Reply | To 8 | View Replies]

To: pabianice

Back when everything was giant sized having big teeth and lots of ‘em was probably a really big deal.


25 posted on 01/20/2015 12:54:50 PM PST by TigersEye (ISIS is the tip of the spear. The spear is Islam.)
[ Post Reply | Private Reply | To 24 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson