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Your search has returned 58 articles:
  • Science Past from the issue of June 20, 1959

    Mechanical cow eats grass — A mechanical “cow” has just started work at the British Agricultural Research Council’s experimental station at Rothamsted, near London. Its function is to extract protein from leaves or grass or any suitable vegetation…. Grass or other vegetation is fed into the machine from a normal elevator. After being chopped, the grass enters a press and the juice is squeezed...

    06/05/2009 - 11:14
  • Letters to the Editor

    Letters

    Tobacco for adults, cocoa for kids

    I was interested in the report of cacao-beverage use by people of Chaco Canyon in New Mexico as early as A.D. 1000 (“Hot chocolate, with foam please,” SN: 2/28/09, p. 14). In the late ’50s, I and others at the Philip Morris Research Center looked at pipe samples from the Four Corners area (Arizona, New Mexico, Colorado and Utah) dating from about A.D....

    06/05/2009 - 11:14
  • Reviews & Previews

    Book Review: Deep Brain Stimulation: A New Treatment Shows Promise in the Most Difficult Cases by Jamie Talan

    The very notion of having electrodes implanted in your brain would seem like science fiction — if 40,000 people hadn’t already undergone the operation, most for Parkinson’s disease.This book tells the story of heroic people — some on operating tables and others wielding scalpels and drills — and the lengths they’ve gone to in seeking to relieve devastating brain disorders. Talan...

    06/05/2009 - 10:44 Neuroscience
  • Reviews & Previews

    Book Review: The Bomb: A New History by Stephen M. Younger

    Nuclear policy in the United States has yet to escape the Cold War’s shadow. In this account of the atomic bomb, a former director of the Defense Threat Reduction Agency makes a case for a reanalysis of the nation’s nuclear needs. “Our nuclear weapons stockpile is optimized for a threat that no longer exists,” Younger writes.Younger offers a straightforward account of nuclear weapons: how...

    06/05/2009 - 10:41
  • Reviews & Previews

    A Mathematician’s Lament: How School Cheats Us Out of Our Most Fascinating and Imaginative Art Form by Paul Lockhart

    Prevailing math education makes the grade but misses the meaning, a teacher argues. Bellevue Literary Press, 2009, 192 p., $12.95.

    06/05/2009 - 10:40