光子激发原子

美国科学60秒 SSS 2015-01-06

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

发表于:2018-12-24 / 阅读(35) / 评论(0)

2015年Scientific American(一)月

SSS 2009-10-21

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

发表于:2018-12-24 / 阅读(49) / 评论(0)

Scientific American(十)月

【跟着美剧练发音】美剧美语1013期

Amy: You know what? I'm done with this. Sheldon: W-Where are you going? Amy: I'm leaving. Sheldon: You can't leave. I need you. Amy: You do? Sheldon: Yes. You're my ride. (the vehicle used for transportation: I've got to hang up nowmy ride's here.) A

发表于:2018-12-28 / 阅读(24) / 评论(0)

跟着美剧练发音

美国国家公共电台 NPR Beam Me Up, Scotty ... Sort Of. Chinese Scientists 'Teleport' Photon To Space

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

发表于:2019-01-16 / 阅读(89) / 评论(0)

2017年NPR美国国家公共电台7月

TED演讲:为什么玻璃是透明的(2)

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

发表于:2019-01-17 / 阅读(49) / 评论(0)

TED演讲教育篇

如何表达心事重重?

1.心事重重 some thing weighs heavily on ones mind The boss is quite down these days. He seems to have something weighing heavily on his mind. 老板这几天沉默寡言，看起来好像是心事重重的 2.苦苦哀求 press ones suit She press

发表于:2019-02-19 / 阅读(50) / 评论(0)

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