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科学美国人60秒:Birch Trees Droop at Night with No Rays in Sight
It’s easy to see that some plants change from day to night—flowers open and close, and even turn to face the sun. In 1880 Darwin noted that the leaves and seedlings of
科学美国人2016-09-22-
科学美国人60秒:Some Malaria Mosquitoes May Prefer Cows to Us
As you've probably experienced firsthand, some mosquito species have a real taste for warm, human blood. So much so that if you raise them on it the lab, they'll accept no substi
科学美国人2016-09-21 -
科学美国人60秒:Drunk People Feel Soberer around Heavy Drinkers
Volunteers in scientific studies sometimes get compensated. The payment can be cash, a gift card or something almost worthless: “It’s amazing what people will do for a
科学美国人2016-09-20 -
科学美国人60秒:Oldest Known Indigo Dye Found in Peru
Many people remember the colors of the rainbow by the acronym ROY G. BIV. For red, orange, yellow, green, blue, indigo and violet. Well, the color indigo just made news.Indigo gets
科学美国人2016-09-18 -
科学美国人60秒:Road Noise Makes Birds' Lives Tougher
[Songbird and traffic noise]It's hard to be a bird in our human-dominated world.You can barely hear yourself sing, let along hear the songs of your friends… and you can for
科学美国人2016-09-18 -
科学美国人60秒:World Wilderness Down 10 Percent in 20 Years
Only about 23 percent of the world’s land area is still what you’d call wilderness—where indigenous people, wildlife, plants and microbes get a chance to live wit
科学美国人2016-09-14 -
科学美国人60秒:Photonic Chip Could Strengthen Smartphone Encryption
Random numbers are hugely important for modern computing. They're used to encrypt credit card numbers and emails. To inject randomness into online gaming. And to simulate super co
科学美国人2016-09-13 -
科学美国人60秒:Protein Test Could Complement Crime Scene DNA Analysis
DNA analysis is a staple of crime scenes—and crime shows, like HBO's The Night of or the old standby, CSI:
科学美国人2016-09-09
"We just need to get this to the DNA lab, confirm it's the victi -
科学美国人60秒:Shark Fins Contain Toxic "One–Two Punch"
Living at the top of the food chain, sharks can accumulate dangerous levels of methylmercury. So much that pregnant women and children are advised not to eat shark at all. But shar
科学美国人2016-09-08 -
科学美国人60秒:Teen Pregnancy Prevention Program Actually Promotes It
Used to be, teenage kids had to carry around a bag of flour wrapped in a blanket to learn the responsibilities of parenthood. But these days? The same lesson is taught with hi-tech
科学美国人2016-09-05 -
科学美国人60秒:Color-Changing Skin Aids Climate Control and Communication
Various animals evolved coloration that keeps them hidden. A jaguar's patterns help it slink undetected across the sun-dappled rainforest floor. The mottled pigmentation on the wi
科学美国人2016-09-02 -
科学美国人60秒:Waste Amphetamines Alter Underwater Ecosystems
Last week, tens of thousands of gallons of sewage gushed into urban streams in Baltimore, because of leaky pipes and flooding rains. And when that happens, it's not just organic m
科学美国人2016-08-30 -
科学美国人60秒:A Green Solution to Improve Indoor Air Quality
Air pollution outside is easy to spot, hanging over the city, or sputtering from a tailpipe. But there's lot of indoor air pollution, too, even if it's not as obvious. It's caus
科学美国人2016-08-26 -
科学美国人60秒:Humans Are Superpredators in the Landscape of Fear
Small carnivores—like foxes or raccoons or badgers—are themselves prey for larger predators—like wolves. So they spend time hiding instead of hunting. This influe
科学美国人2016-08-25 -
科学美国人60秒:Voters Are Seldom Swayed by Local Campaign Stops
Donald Trump hasn't been running the most traditional campaign. And it's not just the unfiltered tweets. "He's neglecting campaigning full stop." Thomas Wood, an assistant profe
科学美国人2016-08-24 -
科学美国人60秒:Ancient Mexican Metropolis Engaged in Hare-Raising Activity
As humans developed civilizations in Eurasia and Northern Africa, they also domesticated animals for food and labor: horses, cows, goats, pigs, sheep and a few others. But no evide
科学美国人2016-08-22 -
科学美国人60秒:Model Black Hole Re-Creates Stephen Hawking Prediction
Black holes got their name because light can't escape them, beyond a certain radius—the event horizon. But in 1974 Stephen Hawking proposed that quantum effects at the event
科学美国人2016-08-19 -
科学美国人60秒:Pigeon Pb Proxies Could Cut Kids' Blood Tests
Pigeons. Ever since humans established permanent agricultural settlements, we’ve lived side-by-side with the birds—or, as some people call them, rats with wings. They w
科学美国人2016-08-18 -
科学美国人60秒:Remote Door Controls Are Car Security Flaw
Today's cars have loads of computer smarts built in. Like the chips that allow you, with the push of a button to unlock your car. And as new cars move down the assembly line, auto
科学美国人2016-08-16 -
科学美国人60秒:This Shark Is the Vertebrate Methuselah
By human standards, a few vertebrate species have incredible longevity. Some tortoises live for nearly 200 years. Bowhead whales can live even a decade or two longer. But now there
科学美国人2016-08-15 -
科学美国人60秒:Humans and Birds Cooperate to Share Beehive Bounty
This is a story about the birds and the bees. When the Yao people of Mozambique want to find beehives full of honey they make this noise [brrrr-hm]. That sound attracts the attenti
科学美国人2016-08-12 -
科学美国人60秒:Pesticides Act as Honeybee Contraceptives
Over the last year, beekeepers in the U.S. lost nearly half their honeybee hives. And there are a lot of suspected culprits for this so-called beepocalypse—from parasitic mit
科学美国人2016-08-09 -
科学美国人60秒:Cut Road Deaths with Mountain Lions
Are you afraid of sharks? What about snakes or spiders? Put those fears aside: because in the U.S. you’re far more likely to be killed or injured by a deer bounding across th
科学美国人2016-08-05 -
科学美国人60秒:Silk Road Transported Goods--and Disease
For thousands of years, what’s called the Silk Road was a group of land and sea trade routes that connected the Far East with South Asia, Africa, the Middle East and southern
科学美国人2016-08-02 -
科学美国人60秒:Inbred Songbirds Croon out of Tune
Just like humans have to learn to talk, songbirds aren't just born singing—they have to learn to carry a tune. "So in the beginning they just babble." Raissa de Boer, a beha
科学美国人2016-08-01
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