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Author Topic:   Someone who admits he knows nothing about geology, asking where the colum came from?
Chara
Inactive Member


Message 61 of 64 (25494)
12-04-2002 7:58 PM
Reply to: Message 59 by gene90
12-04-2002 6:39 PM


esablished grounps?

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Quetzal
Member (Idle past 5891 days)
Posts: 3228
Joined: 01-09-2002


Message 62 of 64 (25538)
12-05-2002 5:06 AM
Reply to: Message 59 by gene90
12-04-2002 6:39 PM


Is there something besides the amphibians appearing in the Triassic rather than the Devonian?

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gene90
Member (Idle past 3842 days)
Posts: 1610
Joined: 12-25-2000


Message 63 of 64 (25636)
12-05-2002 6:57 PM
Reply to: Message 60 by Minnemooseus
12-04-2002 7:29 PM


That's the one. It doesn't bother me so much about getting the time of evolution of a group wrong because there's something of a continuum of transitionals. Not knowing the difference between a modern amphibian and a modern reptile is much more troubling.
By the way, I did not even notice the errors caught by Chara or Quetzal.
[This message has been edited by gene90, 12-05-2002]

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Primordial Egg
Inactive Member


Message 64 of 64 (25708)
12-06-2002 9:10 AM
Reply to: Message 55 by frank
12-03-2002 6:09 PM


There's a good article on it in space.com.....
The new study examined light emitted from distant quasars, powerful young galaxies powered by supermassive black holes. The researchers examined how atoms in giant gas clouds absorbed light back then compared to now. They found that the fine structure constant was smaller in the past.
Some exotic theories that currently are only on the fringes of cosmology could benefit by the possible change.
"There are many possibilities to incorporate a variation of the fine structure constant into existing theories, and there are some theories were the constants of nature are predicted to vary," Stiavelli said. "For the proponents of these theories this would become evidence that the theory is correct."
One of the ideas that might benefit is string theory, which holds that there are many more dimensions to the universe than just time and space. String theorists say that changes in these dimensions over time could force changes in the fine structure constant.
Several scientists told The New York Times that they were skeptical that the new finding would hold up under further scrutiny, saying that the very small difference found could be a slight statistical or observational flaw in the study. But these same scientists were also excited about the possible implications.
PE
------------------
It's good to have an open mind, but not so open that your brains
fall out. - Bertrand Russell

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