Science & Technology
The Aztecs lived in Mexico in the 14th, 15th and 16th centuries and are most famous for their human sacrifices, notably by heart removal.
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| ©Library of Congress |
| Drawn in 1540 CE, the Oztoticpac Lands Map despicts property dimensions of lands near Texcoco |
Among the researchers is Dennis L. Jenkins, a senior archaeologist with the University of Oregon's Museum of Natural and Cultural History, whose summer field expeditions over two summers uncovered a variety of artifacts in caves that had caught the scientific attention of the UO's Luther Cressman in the 1930s.
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| ©Unknown |
| Jenkins is shown holding a piece of the human caprolite (dried feces) that dates to 14,300 years ago. |
Flat, parallel sheets of carbon atoms in the graphite of pencil lead have been peeled apart by the scientists to yield a sheet a single atom thick that has peculiar properties which made the fundamental feat possible.
Perhaps inspired by spending too many days sitting in the cold and rain without getting a single bite, a team of researchers in the US is attempting to teach fish to catch themselves.
Instead of the generous amount of white space which has characterised Google's home page since its 1998 launch, the page is mostly black.
"It's crazy, it's just crazy," Mr Clark, who lives in North Potomac, Maryland, was quoted as saying by the Baltimore Sun newspaper. "It will make a significant difference in my life, for sure," he added.
The find shows that members of the genus Homo, to which modern humans belong, colonized the region much earlier than previously believed. Details of the discovery were published in the March 27 issue of the journal Nature.
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| ©EIA/Jordi Mestre |
| Top view of the mandible ATE 9-1. |








Comment: Replace the word 'fish' for 'human beings' and you would have a pretty good description of how this planet works.