科学美国人60秒 SSS 宇航员的大脑变化

Time spent in zero G changes the body: Astronauts come home with bone loss and muscle weakness. But what happens in their heads? To find out, researchers examined MRIs of astronauts brains taken before and after flight. They looked at 12 astronauts w

科学美国人60秒 SSS 房地产市场繁荣破坏了鸟儿的情人节

Urban development is encroaching on forests in the Pacific Northwest. And its also ruining Valentines Day for some songbirds. Because urban growth is making it a challenge for some birds like the Pacific Wren to stay faithful to their partners, at le

科学美国人60秒 SSS Cool Coating Chills in Sunlight

You've probably seen pictures of Greek villages, where every house is painted bright white. The paint reflects the intense sunlight of the Mediterranean. And it works pretty well to keep the houses from heating up in the sun. But it doesn't actively

科学美国人60秒 SSS 防晒霜加太阳伞才靠谱

Umbrellas Plus Sunscreen Best Bet to Beat Burns 防晒霜加太阳伞才靠谱 Last time you hit the beachand yeah, probably seems like a distant memory in the currently chilly parts of the worlddid you pack sunscreen? A beach umbrella? Or both? 上一

科学美国人60秒 SSS 可穿戴设备和可拉伸电池更配哦

Engineers Build Bendy Batteries for Wearables可穿戴设备和可拉伸电池更配哦 The flat lithium ion batteries that power smartwatches are built by stacking the battery components: positive and negative electrodes, current collectors and a se

科学美国人60秒 SSS Old Records Help Resurrect Historic Quake

Old Records Help Resurrect Historic Quake 旧文件再现史上大地震 Ninety-nine years ago, a magnitude 7.3 earthquake hit Puerto Rico. It also caused a tsunami that swept through coastal towns. All told, the shaking and flooding killed more than

科学美国人60秒 SSS Widening the Suez Canal Ushers In Underwater Invaders

Widening the Suez Canal Ushers In Underwater Invaders 苏伊士运河对地中海水下物种的侵害 The Mediterranean Sea is home to some 17,000 native species. But it's also home to a growing number of non-native species: 756 at last count. 756 m

科学美国人60秒 SSS Flying Through a Corpse's Clues

Flying Through a Corpse's Clues 能帮法医验尸的苍蝇 As soon as a person dies, decomposition begins. And the first visitors arrive. Within five to fifteen minutes of death, blow flies or other insects begin to colonize the body. Rabi Musah, an

科学美国人60秒 SSS The Arctic's Anti-Snowball Snowball Effect

The Arctic's Anti-Snowball Snowball Effect 北极的反雪球效应 Last Christmas, Santa Claus must have been loading his sleigh in a t-shirt and shorts. Temperatures at the North Pole crept up toward the freezing point when they should have been mi

科学美国人60秒 SSS Teaching Computers to Enjoy the View

Teaching Computers to Enjoy the View 电脑也会欣赏风景啦！ What sort of scenery do you find most appealing? Researchers in the U.K. asked volunteers that question, through an online photo-rating game, and the result was sort of what you'd ex

科学美国人60秒 SSS 大敌当前小鱼也会为朋友两肋插刀

Guppy Groups Provide Friendly Protection against Foes大敌当前小鱼也会为朋友两肋插刀 Humans aren't the only species that forms friendships. Lots of animals prefer to spend their time only with certain individuals. 人类并不是唯一一

科学美国人60秒 SSS 狼群需要更多生存空间

Wolves Need More Room to Roam狼群需要更多生存空间 Wolves are vital players in various ecosystems. So we humans need to develop a better tolerance for wolves. And the wolves need more space. Thats according to a new study in the journal Natu

科学美国人60秒 SSS 物理学帮你稳住拉杆箱

Keep Rolling Luggage Upright With Physics物理学帮你稳住拉杆箱 If you've ever pulled a rolling suitcase through the airport, chances are you've also been annoyed by this common occurrence: the suitcase starts rocking back and forth on each w

科学美国人60秒 SSS DNA Points to Multiple Migrations into the Americas

DNA Points to Multiple Migrations into the Americas 美洲多次殖民迁移之谜 For more than ten thousand years, Alaska Native and Canadian First Nations people have lived along the Northwest coast of North America. Now, ancient remains have prov

科学美国人60秒 SSS Better Memory Begets Boredom

Better Memory Begets Boredom 记忆力太好的坏处？ Summers here and it wont be long before school-aged kids across America start complaining that theyre tiredof riding their bikes, playing at the park, swimming in the pooland all the other awes

科学美国人60秒 SSS Moths Inspire Better Smartphone Screens

Moths Inspire Better Smartphone Screens 飞蛾帮你改进智能手机屏 One of the things that makes your smartphone so smart is that if you pull it out in the sun, it senses thatand dials up the screen brightness to compensate. But it's not a perf

科学美国人60秒 SSS Last Woollies Had Mammoth Mutations

Last Woollies Had Mammoth Mutations 长毛象灭绝的真正原因是 In their heyday, woolly mammoths blanketed the Siberian steppe, Alaska and large parts of North America. But by 10,000 years ago, warming climates had turned many of the grasslands

科学美国人60秒 SSS 能够对抗公路裂化的新型混凝土配方

New Concrete Recipes Could Cut Cracks能够对抗公路裂化的新型混凝土配方 There's a stretch of highway in Pennsylvania, along U.S. 422. And like every probably 20 feet you see a big pothole or cracking at the joint. Like everywhere. It wa

科学美国人60秒 SSS Bat Chatter Is More Than a Cry in the Dark

When we humans talk to other humans, the sounds we make all have very specific meanings. When I say apple you immediately imagine something that has the characteristics of an apple. Yossi Yovel, a neuroecologist at Tel Aviv University in Israel. And

科学美国人60秒 SSS Zika Linked to a Variety of Birth Defects

Zika virus infection during pregnancy has been linked to the abnormal brain development called microcephaly. Now a study finds more evidence for the connection. Researchers at the CDC in the U.S. and the National Health Institute in Colombia found th