As anyone who's had a toddler knows, they're incredibly demanding creatures. 家里有刚学会走路的小孩子都知道他们需求量很大。 Armed with an insatiable desire to eatand/or destroy just about everything in their path, these walking...
You know, radio is a great thing. Here I am! 要知道，收音机是伟大的发明。 Flying high abovethe earth, but my voice is coming across just as if I were sittingin front of you. 现在，我在演播厅，可是，我的声音让你觉得我就...
Strictly speaking, air is mostly nitrogenabout seventy-eightpercent, and about twenty-one percent oxygen, which leavesabout one percent of other stuff, like water vapor and carbondioxide. 严格地说，空气主要由大约78%的氮气和21%的氧气组...
A geostationary satellite orbitsthe planet at the same rate asthe planet rotates, so the satellite is always over the same patchof ground. 同步卫星以行星旋转的速度绕着行星运动，所以卫星总是处在地面同一块地方的上空。...
What makes adolescents so vulnerable to developing addictions to substances like nicotine, alcohol, and drugs? 是什么使得青少年很容易对像尼古丁，酒精和毒品这些物品上瘾？ Teens, in particular, seem more vulnerable than any...
Melatonin, sometimes called the hormone of darkness, playsan important role in regulating our daily sleep patterns. 褪黑素，又名黑素细胞凝集素的荷尔蒙，在调节我们日常睡眠规律中扮演重要角色。 This hormone is produc...
Here's a neat experiment: 做一个简单的实验： Find an open doorway and standinside it, facing into the room. 找一扇开着的门并站在门口，面向房间。 Now press your arms outward until the backs of your hands arepressing into the...
Throw your laundry into the dryer without a dryer sheet, and it comes out a rumpled, staticy mess. 不加干衣机用纸就把衣物一股脑扔进烘干机里,结果衣物肯定是皱巴巴,而且还带静电。 Toss one in and the results are much...
Sublimation on this moment of science. 今天我们的节目要讲的是：升华现象。 Pop quiz, everybody put away your books, and keep your eyeson your own radio. 各位，请放下你们手中的书本，专心听收音机，我们来做一个突...
Many insects hibernate or migrate during the winter, but honeybees are more like us, they bundleup and wait for spring. 许多昆虫在冬天的时候冬眠或者迁徙，但是蜜蜂和人类一样，它们也把自己弄的暖暖和和的，等待春...
Sometimes the biggest finds are the smallest finds. 有时候，重大发现源于很小的发现。 Researchers examining a segment of siltstone taken fromground along the Beard more glacier in Antarctica foundsomething unexpected. They found a fly....
One thinks of nature as red in tooth and claw, as the oldsaying goes. 有人认为正如一句古话，自然界充斥着腥牙血爪。 Species compete with each other for resources,and members of the same species compete with each other formates. 同...
Do you think there's life on other planets Don? 你认为其他行星上会有生命存在吗？ It seems perfectly reasonable that there would be Yael. 似乎完全有理由相信有生命存在。 what with how unfathomably largethe universe is.Don...
Dear A Moment of Science, 亲爱的《科学一科》栏目组： Why do we sleep? 我们为什么需要睡觉？ I know this question has been debated byscientists and philosophers for centuries, but are there any hard and fast answers? 我知道科学...
Most birds flap their wings up and down, but hummingbirds move their wings in a figure-eight pattern. 大多数的鸟是上下拍打翅膀飞行，但蜂鸟不一样，它是以八字形移动翅膀。 With each flap they twist their wings one-hundre...
