Scientific American - September 2014 (gnv64)seeders: 333
leechers: 41
Scientific American - September 2014 (gnv64) (Size: 32.96 MB)
Description Scientific American - September 2014 (less ads) English | PDF | 104 pages (with ads) | 39.2 mb EVOLUTION the HUMAN SAGA 36 Evolution Rewritten Startling new findings are upending much of what scientists thought they knew about our beginnings. By Kate Wong 40 WHERE WE CAME FROM 42 Welcome to the Family The road from ancient ape to modern human is far more complex— and interesting—than anyone imagined. By Bernard Wood 48 Climate Shocks Our forebears had to cope with rapid climate fluctuations that ultimately favored modern traits. By Peter B. deMenocal 54 If I Had a Hammer Tools were not enough to forge our species. A radical new theory holds that luck also played a big role. By Ian Tattersall 60 WHAT MAKES US SPECIAL 62 Powers of Two Monogamous coupling might have been the best move our ancestors ever made. By Blake Edgar 68 One for All The uniquely human ability to cooperate on a vast scale has deep evolutionary roots. By Frans de Waal 72 The “It” Factor Experiments comparing children with chimpanzees suggest that a key quality of humans is our capacity for innovation. By Gary Stix 80 WHERE WE ARE GOING 82 The Networked Primate What price do we pay for never having to be alone or bored? M.I.T.’s Sherry Turkle argues that we are losing something fundamental to our humanity. Interview by Mark Fischetti 86 Still Evolving (After All These Years) Our species has changed at a fast pace in the past 30,000 years, and we show no sign of slowing down. By John Hawks DEPARTMENTS 4 From the Editor 6 Letters 12 Science Agenda To bolster the nation’s high-tech labor pool, eliminate community college tuition. By the Editors 14 Forum Requiring medical researchers to test males and females in every experiment is a bad idea. By R. Douglas Fields 19 Advances Hints of supersymmetry. Cheaper, safer solar panels. Plastic finds a home in Arctic sea ice. Taste receptors fight bacteria. What birds understand about thought. 32 The Science of Health Doctors can now readily cure hepatitis C, but the price of treatment is prohibitively high. By Jessica Wapner 35 TechnoFiles Digital orchestras could replace live musicians in concert. By David Pogue 92 Recommended A primer on the universe. Scientific answers to absurd hypothetical questions. Ways to gain self-control. Bringing back the recently dead. By Clara Moskowitz 94 Skeptic How the survivor bias distorts reality. By Michael Shermer 96 Anti Gravity For a tasty treat, try arthropods. By Steve Mirsky 98 50, 100 & 150 Years Ago 100 Graphic Science Exactly how much do humans differ genetically from chimps and other primates? By Kate Wong Related Torrents
Sharing Widget |
All Comments