标签 科学美国人 下的文章

微波炉不适合加热冰块

Water molecules can arrange themselves to form much larger structures. Take intricate snowflakes, which form all by themselves in the right conditions. Well, now researchers have created some delicate water structures of their own, in the form of microscopic ice mazes, with a little help from light.

秀色可餐

英格兰普利茅斯郊外的一个小型发电站,灰褐色的单调栅栏将电线和塔楼团团围住,这里是英国最丑的地方之一。我知道这里丑并不是因为我去过,而是因为有张该地的照片在一款在线游戏中只得了一分,这款游戏叫景点美不美,游戏玩家对英国各地风景照片按优美程度进行评分,满分十分。

周末补觉不可取

Sleep Deficit Diabetes

Few things are more satisfying than sleeping late on weekends. But though the extra z's may improve your mood, they do not appear to improve your health. Because a new study shows that so-called "recovery sleep" cannot reset the body's metabolic clock and may actually lead to some serious health issues.

冷血动物有心脏自愈能力

Heart healing

It sounds like a witches' recipe: gather the hearts of a fence lizard; a little brown bat; a naked-tailed armadillo; and dozens of others. "So initially we tried to get them from zoos, but unfortunately that didn't work out very well. We couldn't get any samples, even when the animal died, we couldn't get a heart." Guo Huang, a developmental biologist at the University of California, San Francisco. He says they had more success obtaining specimens from the jars of natural history museums.