Discover Magazine USA - April 2015 (gnv64)seeders: 196
leechers: 42
Discover Magazine USA - April 2015 (gnv64) (Size: 34.14 MB)
Description Discover USA - April 2015 (The Einstein Issue) English | 76 pages | PDF | 34.1 mb THE EINSTEIN ISSUE 28 Outsmarting Einstein Albert Einstein's development of the general theory of relativity 100 years ago changed physics forever. Since then, scientists have gone to extraordinary lengths to challenge his ideas. BY BILL ANDREWS 30 Putting Relativity to the Test Many of Einstein's contemporaries doubted relativicy when it debuted. but a long hiscory of experiments has seemingly dispelled thac doubt. BY ADAM HAORAZY 34 Defying Gravity Just because reletivity has passed a century of tests doesn't mean physicists are complacent. Today, researchers are using the most complex technology yet to challenge the theory - again. BY GABRIEL POPKIN 38 Beyond Einstein Why is the scientific world so obsessed with pucting relativity on trial? Disproving Einstein would surely go down in the history books, but there's more at stake than just fame. BY STEVEN ADIS 42 Between the Folds The fixation on tescing relativity may only be matched by a fascination with the organ that enabled Einstein to develop his theory. Researchers have examined every nook and cranny of Einstein's brain to determine what made him so special, but to what end? OTHER FEATURES 46 WHAT ARCTIC FOSSILS REVEAL ABOUT OUR FUTURE Cold Case As Earth warms up, the Arctic faces troubling consequences. To try and predict how our planet's dimatic story will play out, Natalia Rybczynski and her peers are turning to fossils that hint at both the past and the future. sv KllNOALL Pow£LL 54 WHY SLEEP IS A MATTER OF LIFE OR DEATH Wake-Up Call Evidence abounds that sleep 1s essential to stay healthy. But recent research has found catching some Z's doesn't just give you a sound mind in a sound body - it can save your life. BY KENNETH MILLER COLUMNS & DEPARTMENTS 6 EDITOR'S NOTE A Hero's Journey Celebrating some heroes behind the scenes, both in this issue and, as one reader points out, in life, too. 18 BIG IDEA Impulse Control Often, medications are the go-to solution for health problems. But doctors could soon have another way to address these issues, one that literally strikes a nerve. 24 VITAL SIGNS STEROID SHOCKER One Giant Leap Life was picture-perlect for one asthmatic woman with a great job in a n ew city. So why did she suddenly contemplate ending her life? BY DOUGLAS ADLER 60 ORIGIN STORY Our First Winter The Dmanisi excavation site holds many secrets in its earthy depths. But perhaps the most tantalizing could rewrite the story of when and how our early hominid ancestors found themselves out of Africa a1Jd enduring chillier climates. BYGEMMATARl,ACH 64 MIND OVER MATTER Divided Loyalties We pledge allegiance to many things: our family, our friends and perhaps our country or hometown. But how do we cope when our loyalties clash? 68 OUT THERE No Such 1hin as a Black Hole? ust w en wet oug t we wrappe our heads around black holes, new theories tell us to forget what we know. BY COREY S. POWELL 74 20 THINGS YOU DIDN'T KNOW ABOUT Dust Dust might d elight some critters,but humans once enlisted the help of "Puffing Billy" to !keep the dust bunnies at bay. And those particles aren't just dirty; they can be deadly. Plus, they're everywhere. Even in space! Related Torrents
Sharing Widget |