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Sometimes it is hard to see the light, especially it lies in the invisible spectrum, like ultrared, ultraviolet radiation. But if you long to see the unseeable, you might interested to hear that under certain conditions people can catch a glimpse of
2015年Scientific American(一)月
A nightlight may keep those monsters under the bed. But it may also open the door to the blues. Because a new study reveals that animals exposed to light all night long show signs of clinical depression. If you have access to electricity, you no doub
Scientific American(十)月
Lately I've been, I've been losing sleep最近夜不能寐 Dreaming 'bout the things that we could be胡思乱想各种可能 But baby I've been prayin' hard但亲爱的，我拼命地祈祷着 Said no more counting dollars祈祷不再被金钱所迷惑
听歌学英语
DAVID GREENE, HOST: I mean, let's listen to this. (SOUNDBITE OF TV SHOW, STAR TREK: THE ORIGINAL SERIES) JAMES DOOHAN: (As Captain Montgomery Scott) Ready to transport. WILLIAM SHATNER: (As Captain James T. Kirk) Energize. D. GREENE: Yes, the familia
2017年NPR美国国家公共电台7月
But this still doesn't explain why light is able to pass through glass rather than being absorbed as with most solids. 但是这还是不能解释为什么光可以穿透玻璃而不是像其他大多固体那样被吸收。 For that, we need to go a
TED演讲教育篇
Lately I been, I been losing sleep 最近我辗转难眠 Dreaming 'bout the things that we could be 梦想着那些我们能一起完成的事情 But baby I been, I been prayin' hard 宝贝，我早已在内心深深地祈祷 Said no more counting do
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