Scientific American Contents, February 2013 Volume 308 Number 2, pp 6 - 82

TABLE OF CONTENTS February 2013 Volume 308, Issue 2 From the Editor Letters Science Agenda Forum Advances The Science of Health TechnoFiles Features Reviews and Recommendations Skeptic Anti Gravity 50, 100 and 150 Years Ago Graphic Science Recommend to your library Web feed Available online only Subscribe Advertisement Scientific American Recommend to your library for online access Scientific American provides you with an overview of the latest in science and technology. Covering everything from medical research and hypertension to global climate change and evolution, Scientific American offers researchers, students, educators an online scientific resource they can rely on. Recommend site license access to your library today! From the Editor Top Minds in Motion   p6 Mariette DiChristina doi:10.1038/scientificamerican0213-6 Letters Top Letters   pp8 - 10 doi:10.1038/scientificamerican0213-8 Science Agenda Top Beware the Destiny Test   p12 doi:10.1038/scientificamerican0213-12 Forum Top A Tale of Two Internets   p13 Michael Fertik doi:10.1038/scientificamerican0213-13 Advances Top A Dirty Business   p14 David Biello doi:10.1038/scientificamerican0213-14 Ring Theory   p15 John Matson doi:10.1038/scientificamerican0213-15a Worm Elixir   p15 Katherine Harmon doi:10.1038/scientificamerican0213-15b Where No Tree Has Gone Before   p16 Carrie Madren doi:10.1038/scientificamerican0213-16 Patent Watch   p17 Marissa Fessenden doi:10.1038/scientificamerican0213-17a Your Brain on Sports   p17 Daisy Yuhas doi:10.1038/scientificamerican0213-17b Stopping Superbugs   p18 Katherine Harmon doi:10.1038/scientificamerican0213-18a Naps in Space   p18 Katie Worth doi:10.1038/scientificamerican0213-18b Bug-Eared   p19 Marissa Fessenden doi:10.1038/scientificamerican0213-19 Cloud Catcher   p20 Marissa Fessenden doi:10.1038/scientificamerican0213-20 What is it?   p21 Alex Wild doi:10.1038/scientificamerican0213-21 Boring Beetles   p22 Katherine Harmon doi:10.1038/scientificamerican0213-22 Roots of Genius   p23 Gary Stix doi:10.1038/scientificamerican0213-23 Not Quite Gone   p24 John Matson doi:10.1038/scientificamerican0213-24a Bird Butts   p24 Hannah Waters doi:10.1038/scientificamerican0213-24b The Science of Health Top A Dangerous Game   pp27 - 28 Deborah Franklin doi:10.1038/scientificamerican0213-27 TechnoFiles Top Out with the Real   p29 David Pogue doi:10.1038/scientificamerican0213-29 Features Top Brain Cells for Grandmother   pp30 - 35 Rodrigo Quian Quiroga, Itzhak Fried and Christof Koch doi:10.1038/scientificamerican0213-30 Secrets of Primitive Meteorites   pp36 - 41 Alan E. Rubin doi:10.1038/scientificamerican0213-36 Shattered Ancestry   pp42 - 49 Katherine Harmon doi:10.1038/scientificamerican0213-42 Rethinking the Gulf Stream   pp50 - 55 Stephen C. Riser and M. Susan Lozier doi:10.1038/scientificamerican0213-50 The Battery-Powered Bullet   pp56 - 61 Gregory Mone doi:10.1038/scientificamerican0213-56 The Myth of Antioxidants   pp62 - 67 Melinda Wenner Moyer doi:10.1038/scientificamerican0213-62 Data on Wings   pp68 - 73 Hillary Rosner doi:10.1038/scientificamerican0213-68 Reviews and Recommendations Top Weird Life   p74 doi:10.1038/scientificamerican0213-74a Animal Wise   p74 doi:10.1038/scientificamerican0213-74b Blackett's War   p74 doi:10.1038/scientificamerican0213-74c The Measure of Manhattan   p74 doi:10.1038/scientificamerican0213-74d Skeptic Top The Left's War on Science   p76 Michael Shermer doi:10.1038/scientificamerican0213-76 Anti Gravity Top Still Crazy After All These Fears   p78 Steve Mirsky doi:10.1038/scientificamerican0213-78 50, 100 and 150 Years Ago Top 50, 100 & 150 Years Ago   p80 Daniel C. Schlenoff doi:10.1038/scientificamerican0213-80 Graphic Science Top Rising Risks   p82 Fred Guterl doi:10.1038/scientificamerican0213-82 Top   Natureevents is a fully searchable, multi-disciplinary database designed to maximise exposure for events organisers. The contents of the Natureevents Directory are now live. The digital version is available here. Find the latest scientific conferences, courses, meetings and symposia on natureevents.com. For event advertising opportunities across the Nature Publishing Group portfolio please contact natureevents@nature.com More Nature Events

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