/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/c7/c0/c7c00bb9-ac69-4312-97a3-2a2f4472101a/smoke.jpg)
Third-Hand Smoke Is Dangerous, Too
Like a Virus, Nicotine Can Stick to Clothes And Surfaces for Days
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A Primer on the Eight Olympic Events Debuting in Sochi
Study up on the rules and history of the latest competitions to make the Winter Games lineup
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Mining Tar Sands Produces Much More Air Pollution Than We Thought
Research shows that emissions of a class of air pollutants are two to three orders of magnitude higher than previously calculated
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California’s Crucial Reservoirs Are Running Low, And That’s Even Worse Than It Sounds
An ongoing drought has drained California dry
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It Takes Just Five Seconds to Find Out If You’re a Good Liar
But maybe don’t read too much into this test
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No One Knows Why Ancient Egyptians Built This 4,600-Year-Old Pyramid
The new pyramid joins the list of other mysterious step pyramids built before the Great Pyramid at Giza
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Pay Purr Pet at Japan’s Cat Cafés
For a small fee, visitors can sip on drinks while surrounded by friendly felines
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X-Ray Art: A Deeper Look at Everyday Objects
Brit Hugh Turvey adds his artistic touch to x-rays of suitcases, old shirts and a host of other subjects
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The People Who Went to the Super Bowl Are Now a Little Bit More Deaf
Major sports games are loud enough to cause permanent hearing loss
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You’re Probably Not Working Out Hard Enough to Actually Need that Gatorade
Water is all you need to replenish after a workout
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The Secrets of Sherlock’s Mind Palace
The BBC/Masterpiece sleuth employs a memory technique invented by the ancient Greeks
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Five High-Tech Tools to Boost Athletes to Olympic Glory
Athletes are using cutting-edge training devices that they hope will give them a competitive advantage
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No Two Savannas Are Exactly Alike
Which means climate change will impact them differently
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The British Employed Official War Painters in Both World Wars
Between 1939 and 1945 the War Artists Advisory Committee purchased about 6,000 pieces of art from over 400 artists
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The Great Debate Over Whether 1+2+3+4..+ ∞ = -1/12
Can the sum of all positive integers = -1/12? It can, sort of…
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Neanderthals Went Extinct 30,000 Years Ago, But Their DNA Is Still in the Human Genome
Some of the Neanderthal genes made important contributions while others made us more susceptible to disease
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Antarctica’s Blood Red Waterfall
On the southern edge of the world, a waterfall runs red as blood
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Forensic Experts Have Found 55 Bodies Buried at Notorious Reform School
That’s more than twice as many as they expected to find
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Celebrate Chinese New Year With These Life-Size Warrior Lanterns
The University of Edinburgh is displaying life-size lanterns inspired by the famous army of terracotta soldiers
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It’s Not the Moon, It’s Nevada
Explore the history of Nevada’s Nuclear Test Site, and see how a half-century of tests transformed the desert into a cratered moonscape
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