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科学美国人60秒 SSS 健康也传染
Healthy Behavior Can Spread Like Illness健康也传染 If your friends are happyturns out you're more likely to be happy too. If your friends are overweight, that too ups the odds you'll pack on pounds. Those effects have been shown in studies. And
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科学美国人60秒 SSS DNA新途径
Ancient Human DNA Found in Cave DirtDNA新途径 Fossilized skulls and skeletons found in European caves gave us our first glimpse of our ancient cousins, the Neandertals. And a finger bone, found in a Siberian cave, first indicated the existence of
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科学美国人60秒 SSS 不知吃么什 那由微生物来决定吧~
Gut Microbes Help Keep Starved Flies Fecund不知吃么什 那由微生物来决定吧~ Just like humans, fruit flies have to eat a balanced diet. 果蝇和人类一样,也要饮食均衡. They need sugar to survive, they need amino acids to make egg
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科学美国人60秒 SSS 狐狸“变”成狗
Selective Breeding Molds Foxes into Pets狐狸变成狗 Want to make a dog? Well, wolves evolved into dogs at least once. But it turns out you can also make whats basically a dog by starting with wild foxes. Select the ones that do not seem to want t
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科学美国人60秒 SSS 慢慢吃 不着急哦
Eat Slowly and Breathe Smoothly to Enhance Taste慢慢吃 不着急哦 Ever lose your ability to taste during a cold, because your nose is stuffed up? Thats because the nose is intimately involved with taste. When you chew, volatile flavor compounds
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科学美国人60秒 SSS 事件起因
Why One Researcher Marched for Science事件起因 And tomorrow Ill be marching, because dont you think Millie would agree with the March for Science. 明天我将会参加游行，因为米莉文也会同意这个关于科学的游行。 Lisa Klein,
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科学美国人60秒 SSS 二氧化碳浓度回到过去水平
Climate 420 Million Years Ago Poised for Comeback二氧化碳浓度回到过去水平 Were hearing a lot of the arguments against action on reducing CO2being based on, well CO2 was higher in the past, so we dont have to worry about it. 我们听到很多
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科学美国人60秒 SSS 蜜蜂更偏爱含有尼古丁的花朵
Bees Prefer Flowers That Proffer Nicotine蜜蜂更偏爱含有尼古丁的花朵 We humans enjoy coffee and tea, to give our brains a caffeine boost. And bees sometimes sip nectar that naturally contains caffeine, which seems to enhance their memory.
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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
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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
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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
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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。
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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
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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
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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
