Tons of dinosaur fossils have been unearthed over the last hundred years. 过去的一百年来，大量恐龙化石被发掘。 These long-buriedbones tell us about the physical build and eating habits of dinosaurs. 这些长埋的骨头告诉我们恐...
The scientists used a computer program to analyze the results obtained with a modern prism. 科学家们用电脑程序来分析这些通过这个现代棱镜得到的结果。 Then they replaced each wavelength with the color the human eye sees at t...
In 1893, the U.S. Supreme Court heard a case that hinged onwhether the tomato was a fruit or a vegetable. 1893年，美国最高法院有一场关于西红柿到底是水果还是蔬菜的案子。 According to botanists, most of the edible parts of...
When cells divide to create copies of themselves or to makesperm and eggs, there is always a chance of genetic error. 当细胞分裂自我复制或者生成精子和卵子时，总有机会发生遗传错误。 Gene duplication, when a regular genei...
Fun fact about alligators:they can regrow any of their eightyteeth up to fifty times. 关于短嘴鳄的有趣的事实：它们的八十颗牙齿中任一一颗牙都可以重新生长五十次。 Which is pretty impressive, especially compared to u...
Many people know that marine mammals, like whales, porpoises and dolphins, breathe air, like wedo. 大多数人都知道些海洋哺乳动物，比如鲸鱼，鼠海豚和海豚。它们和我们一样都要呼吸空气。 But, many people don't know...
It's time to go again to the A Moment of Science mailbag. A listener writes: 又到了《科学一刻》听众来信时间了。一位听众写道： Dear A Moment of Science, 亲爱的《科学一刻》栏目组： I know that cats kill a lot of wil...
Yael, suppose there's a trolley that's about to run over five people. 雅艾尔,假设一辆有轨电车将要撞上五个人。 Do you flip the switch that will steer the trolley onto a different track if that means only one person will die? 这时扳...
Those spots are a natural part of the ripening process. 其实那些斑点是香蕉成熟过程中的自然组成部分。 You see, just like all fresh produce, your bananas are alive. 你知道，和所有的新鲜果蔬一样，香蕉是活的。 T...
I'd like to look into your past, and predict the future. 我想看看你的过去,预测未来。 I bet that the last time you went to the beach, the wind was blowing in off the water. 我敢打赌，你最后一次去海滩的时候，海风正从水面...
Hydroplaning happens when a vehicle moves too quickly along a wet road. A layer of water accumulates under the tires; they lift up and lose traction; the driver loses control. 当车辆在潮湿的路面上开得太快时会出现打滑现象。轮胎下...
Although there has been much debate about whether race has a biological or social basis, the bottom line is that race is a psychological reality for many people. 虽然对于种族歧视究竟是关于生物种群还是社会因素仍然未果，但至...
Today, it's time once again for another Gross Fact of the Month. 今天的节目又到了令人生厌话题的时刻。 Uh oh! I hope no one's eating! 我希望此时此刻没人正在用餐。 Okay, ready? In a recent study of people passing through...
The signs are unmistakable: the eyes water, the chest heaves, the nose twitches, the body tenses, suspense builds... until finally a sneeze blasts forth, concluding the drama. 眼睛湿润，胸部隆起，鼻子一阵抽搐，身体紧绷，就这样待...
You probably know that the way to stronger muscles is a weight or resistance training program, 你可能知道要长肌肉需要合适的重量或阻力训练计划, but do you know how weight lifting increases strength? 但你知道举重也能长肌肉...
