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Learning to Make a Stone Age Axe Gives Clues to How the Brain Evolved

Gary Stix Scientific American
Experimental archaeology involves moderns crafting Stone Age tools by chipping away at rocks. One reason is to get at the question of what role toolmaking may have played in brain evolution, given the demands this task places on both mental faculties and motor skills.

Russell Foster: Why Do We Sleep?

Russell Foster studies the sleep cycles of the brain. What do we know about sleep? Not a lot, it turns out, for something we do one-third of our lives. Foster shares popular theories about sleep, busts some myths and hints at some bold new uses of sleep.

Tidbits - February 14, 2013

Published by Portside
Readers respond - The Persistence of Racial Resentment; Meredith Tax on Democracy, Islam and the Left. Response to Carl Proper (The Americanization of the United States); Prisoner X. Plus: Grad Students Take Action at UIC - Urge School to Not Break Their Hearts; Resources on Racial Justice; Role of Public Intellectuals - New York - Feb 15; Life of Eslanda Robeson - Conversation with Barbara Ransby - Chicago - Feb 19; Red Brain, Blue Brain - There is a Difference;
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