Other rocky planets in our solar system show a common feature: within giant craters caused by impacts theres evidence of volcanic activity. Which made scientists wondercan big impacts actually cause volcanic eruptions? And has that scenario ever happ...
This is Scientific American's 60-second Science. I'm Karen Hopkin. 这里是科学美国人60秒科学。我是凯伦霍普金。 If there's one thing we know about viruses, it's that they love to spread. The novel coronavirus is happy to use us huma...
Blood donations save lives. But blood can only be stored under refrigeration for up to six weeks. After that, it's no longer usable for transfusions. 献血可以挽救生命。但是血液最多只能冷藏保存6周。之后，就无法再用于输血...
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 another relativethe Denisovans. But fossils are h...
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 like random number generators. They really didn't seem to be providing anything th...
That, of course, is the sound of the Himalayan forest thrush. And that sound was a clue to field researchers that they might have a new species of bird on their hands. Even though it was in the bush. You know what I mean. 这是喜马拉雅深林中画...
The animal kingdom is full of species that use soundgrowls and bellows and roarsto signal size. Dogs do it. Red deer do it. Koalas do it. 动物王国有各种各样的物种，它们用声音咆哮来表示威力大小。如狗会叫，小鹿也这样...
This is Scientific American's 60-second Science, I'm Eliene Augenbraun. 这里是科学美国人――60秒科学系列，我是艾琳奥根布劳恩。 How old is your four-legged best friend? Common wisdom says that a dog ages seven years for every...
The Surprising Physics of Finger Snapping 打响指的惊人物理现象 Karen Hopkin: This is Scientific Americans 60-Second Science. Im Karen Hopkin. Doing science isnt easy. It takes an enormous amount of time and energy to collect and analyze dat...
A good mood may put a spring in your step. But the opposite can work too: purposefully putting a spring in your step can improve your mood. Thats the finding from a study in the Journal of Behavior Therapy and Experimental Psychiatry. 好心情可能会...
