科学美国人60秒 SSS Hawaiian Crows Ready for the Call of the Wild

Once upon a time, on the big island of Hawaii, it would not have been unusual to hear: [wild Hawaiian crow call] Thats the call of the Hawaiian crow. Its is a critically endangered species, now extinct in the wild after decades of habitat loss, perse

科学美国人60秒 SSS Teeth Hint at a Friendlier Neandertal

Teeth Hint at a Friendlier Neandertal牙齿的秘密 The paleo dietit's pretty trendy. Eat like a caveman, no dairy, grains, sugar and so on. But what you probably won't find on many paleo plates today? 旧石器时代的饮食非常的时髦。吃的就

科学美国人60秒 SSS 健身手环并不能准确计算卡路里

Fitness Bands Fail on Calorie Counts健身手环并不能准确计算卡路里 Fitness bands like the Apple Watch and the Fitbit aim to track your vitals, like heart rate. But early models weren't all that accurate.We thought of them a little bit lik

科学美国人60秒 SSS 暗藏威胁的太空微尘

The Sneaky Danger of Space Dust暗藏威胁的太空微尘 Aside from all the satellites, and the space station orbiting the Earth, there's a lot of trash circling the planet, too. Twenty-one thousand baseball-sized chunks of debris, according to NAS

科学美国人60秒 SSS 爱因斯坦医学院毕业演讲

Former CDC Head Warns of Threats Biological and Political爱因斯坦医学院毕业演讲 Einstein wrote, Striving for social justice is the most valuable thing to do in life. 爱因斯坦曾说，人生最有价值的事是为社会公正而努力。

科学美国人60秒 SSS 树木击败草坪成洛杉矶旱灾救星

Trees Beat Lawns for Water Hungry L.A. 树木击败草坪 成洛杉矶旱灾救星 When California was strangled by drought, the city of Los Angeles was offering home owners cash to replace their lawns with landscaping that was less thirsty. Because

科学美国人60秒 SSS 红辣椒可缓解肠炎

Hot Chilies Cool Down Gut Inflammation in Mice红辣椒可缓解肠炎 The ingredient that makes hot chilies hot is called capsaicinand it can set your mouth on fire. But the spicy compound has a soothing effect too: in your gut, it kicks off a chemi

科学美国人60秒 SSS 人类噪音害苦了野生生灵

Wilderness Areas Suffer from Human Sound 人类噪音害苦了野生生灵 Noise can prevent an animal from hearing other important sounds. 噪音会妨碍动物听到其他重要的声音。 Rachel Buxton, a conservation biologist at Colorado State

科学美国人60秒 SSS Polar Bears Must Work Harder On Faster Sea Ice Treadmill

Polar Bears Must Work Harder On Faster Sea Ice Treadmill奔跑吧!北极熊 Polar bears live on floating rafts of sea ice, hunting for seals. But in the Arctic Ocean north of Alaska, the cold polar wind constantly blows that ice from east to west. Wh

科学美国人60秒 SSS Extreme Storms Are Extreme Eroders

Extreme Storms Are Extreme Eroders数天百年的效果 In 2013, a rare September storm swept across the plains of Colorado. When it hit the Rockies, it dropped more than a foot of rain in places like Boulderas much as the city sees in an entire year

科学美国人60秒 SSS Chaotic Orbits Could Cause Catastrophic Collision

Chaotic Orbits Could Cause Catastrophic Collision火星真的会撞地球? Isaac Newton said, I can calculate the motion of heavenly bodies, but not the madness of people. He meant that while people can be unpredictable, the planets are just the oppo

科学美国人60秒 SSS Individuals' Blood Glucose Levels after Meals May Be Predictable

Individuals' Blood Glucose Levels after Meals May Be Predictable预测血糖 High blood sugar levels are a risk factor for type 2 diabetes. Doctors today have only general dietary recommendations for how to control those levels, because theres no rea

科学美国人60秒 SSS Healthful Diet Switch Helps Even Late in Life

Healthful Diet Switch Helps Even Late in Life论人生晚年健康饮食的重要性 Lets say your diet has been not so great. Maybe too much red meat, especially processed meat. Maybe too many sugary soft drinks. And maybe youve been eating like tha

科学美国人60秒 SSS 数天百年的效果

Extreme Storms Are Extreme Eroders数天百年的效果 In 2013, a rare September storm swept across the plains of Colorado. When it hit the Rockies, it dropped more than a foot of rain in places like Boulderas much as the city sees in an entire year

科学美国人60秒 SSS 预测血糖

Individuals' Blood Glucose Levels after Meals May Be Predictable预测血糖 High blood sugar levels are a risk factor for type 2 diabetes. Doctors today have only general dietary recommendations for how to control those levels, because theres no rea

科学美国人60秒 SSS 论人生晚年健康饮食的重要性

Healthful Diet Switch Helps Even Late in Life论人生晚年健康饮食的重要性 Lets say your diet has been not so great. Maybe too much red meat, especially processed meat. Maybe too many sugary soft drinks. And maybe youve been eating like tha

科学美国人60秒 SSS

Nobel in Chemistry for Seeing Biomolecules in Action 诺贝尔化学奖微化分子结构 The Royal Swedish Academy of Sciences has decided to award the 2017 Nobel Prize in Chemistry jointly to Jacques Dubochet, Joachim Frank and Richard Hendersonfor

科学美国人60秒 SSS 听不见我的声音?!

This Frog Can't Hear Its Own Calls In the frog world, romance is often accompanied by a song. It's the norm. The vast majority of frogs have males calling to attract females. 在青蛙的世界，浪漫总与歌声相随。这是一种常态。绝大多

SSS 2010-05-17

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. How do baby coral find a new home in the open ocean? They listenvery closelyfor reef sounds. Scientists at the University of Bristol in England had alrea

SSS 2010-05-18

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? Could the eradication of smallpox have been a factor in the spread of HIV? Thats the question posed by researchers in the journal BMC Immunology, who think that the vacc