Whether or not a treatment for an illness or disorder works usually doesn't depend on whether we believe it will work. 对于疾病或内分泌失调的治疗方案是否凑效常常不取决于我们是否相信它会产生效果。 For example, if...
Have you ever wondered why we humans don't have spots or stripes? 你是否曾经好奇过为什么我们人类身上没有斑点或条纹？ Let me think,Humans and animals get their skin color from melanin pigments, which can be either black or yel...
We've all heard the phrase dog is man's best friend. 我们都听过这句话狗是人类最好的朋友。 But how did dogs get to be so friendly with humans? 但是为什么狗对人类那么友好呢？ It turns out that dog domestication wasn't s...
It's time to go again to the A Moment of Science mailbag. A listener writes: 又到了再次查看科学一刻来信的时候了。一位听众朋友写到： Dear A Moment of Science,I know that gorillas and chimpanzees can learn sign language and u...
After all,too much oxygen can be toxic. 毕竟过多的氧气是有毒的。 After several days of breathing nothing but pure oxygen, you'd begin to experience nausea, dizziness, muscle twitches, and convulsions. 只呼吸纯氧几天之后，你会觉...
When you're in a stressful situation, are you confident or insecure? 当你身处压力时，你是自信满满还是不知所措？ Do you react positively or negatively? 是行动更积极还是更消极？ The answer may depend in part on whom you...
When human females are pregnant, they're advised to stay away from alcohol, for fear of harming the fetus. 当人类女性怀孕时，人们就会建议她们戒酒，以免伤害胎儿。 And most parents refrain from giving their infants bottles fu...
At first glance, astronomers and cancer researchers may not seem to have a lot in common. 乍一看，天文学家和癌症研究者似乎没有什么共同点。 After all, astronomers spend their time gazing at distant stars and galaxies, while onc...
Weightlessness and zero gravity are two different things. 失重和零重力其实是两种完全不同的概念。 Think about it,the earth's gravity keeps the moon in orbit. 想想看，地球的重力使月球绕轨运行。 And astronauts are gen...
It's time to go again to the A Moment of Science mailbag. 又到了抽取《科学一刻》信箱来信的时间了。 A listener writes: 一位听众这样写到： Dear A Moment of Science, 亲爱的《科学一刻》栏目： I keep hearing about...
