06 February 2007
English Guru: SILK ROAD
Nick Middleton teaches geography at Oxford University
ANTHROPOLOGY:No Last Word on Language Origins -- Holden 282 (5393): 1455 -- Science
Nothing is more human than speech.Human beings were anatomically ready to speak more than 150,000 years ago--but clear evidence that they were doing so does not appear for 100,000 years afterward
25 January 2007
Plate tectonics animations
These animations were originally produced for the US Geological Survey video Secrets in Stone. They have been converted to animated gifs for web display. You may use these animations for any educational purpose, we simply request that you cite the US Geol
A Science Odyssey: You Try It: Plate Tectonics
Even though the theory of continental drift was proposed in 1912 by Alfred Wegener, the idea of moving continents wasn't generally accepted until the early 1960s. That's when Wegener's theory was resurrected by Harry Hess, Robert Dietz, Fred Vine, and Dru
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