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  • Author: avelin
  • Date: 4-03-2015, 06:27
4-03-2015, 06:27

Discover Magazine USA - April 2015

Category: Magazines

Discover Magazine USA - April 2015

Discover Magazine USA - April 2015
English | 76 pages | PDF | 35 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!
Discover Magazine USA - April 2015

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