Discover – September 2019

Degrees of Separation That’s 18 trillion billions, or about one trillion times the age of the universe — and it’s also the half- ...

Hidden amid these colorful swirls are a bunch of jerks that could mess with your phone’s maps app. But thanks to this vivid comp ...

22 DISCOVERMAGAZINE.COM K E L L I E J A E G E R / D I S C O V E R BY TONY DAJER He nodded. I slipped them off to find bony feet, ...

“With my Zinger Chair, I can go anywhere and everywhere I want!” More and more Americans are reaching the age where mobility is ...

24 DISCOVERMAGAZINE.COM K E L L I E J A E G E R / D I S C O V E R Familiar as they may be, beta- blockers are potent medications ...

SEPTEMBER/OCTOBER 2019 . DISCOVER 25 Back in Mr. Mendez’s room, I said, “The good news is, all tests are normal.” My patient bea ...

26 DISCOVERMAGAZINE.COM C O M P O S I T E : D A N B I S H O P / D I S C O V E R . E L E V A T O R : A Z A T V A L E E V / S H U ...

What Adult Diaper Companies Don’t Want Men To Know... Men’s Liberty keeps you dry and leak free for up to 24 hours. *30 days sup ...

participants’ negative experiences, such as particularly painful drills. “It is really a case of both nature and nurture,” says ...

APOLLO 11 MyScienceShop.com/Apollo Sales tax where applicable. CELEBRATING July 20, 1969 – July 20, 2019 Commemorate the 50th an ...

30 DISCOVERMAGAZINE.COM ...

SEPTEMBER/OCTOBER 2019 . DISCOVER 31 The Science of Gun Violence Researchers believe public health models hold the key to reduci ...

20,000 25,000 30,000 35,000 40,000 U.S. Deaths by Firearms, 1968–2017 Ye a r N u m b e r o f f a t a l i t i e s 2 0 1 7 2 0 1 6 ...

30,000 35,000 40,000 Motor vehicles Firearms 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Annual U.S. Deaths by Motor Vehic ...

24.2 24.3 24.1 23.8 23.3 19.7 14.4 10.3 7.3 5.0 3.3 2.1 1.3 0.8 0.5 0.3 0.2 0.1 0.0 172.6 174.5 174.1 173.6 171.9 143.2 95.5 58. ...

Age Male Female 15–34 1.0 0.5 0.0 35–54 55–74 75 + Firearm Death Rates in the U.S. by Gender and Age, 1990–2015 D e a t h r a t ...

36 DISCOVERMAGAZINE.COM complex and difficult to assess. Morral’s team at RAND combed through the limited scientific lit- eratur ...

SEPTEMBER/OCTOBER 2019 . DISCOVER 37 measure what happens when current firearm own- ers are later prohibited from possessing a f ...

38 DISCOVERMAGAZINE.COM THE ENERGY ...

O P P O S I T E P A G E : M A R T I N C A P E K / S H U T T E R S T O C K . T H I S P A G E : J I N L I W A N G / X I N H U A / ...