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阳光比你想象中年老得多 - Sten Odenwald
734,593 plays
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Sten Odenwald |
TED-Ed
• May 2015
Read transcript
观看完整视频： http://ed.ted.com/lessons/sunlight-is-way-older-than-you-think-sten-odenwald 太阳表面发出的光大约需要8分钟才能到达地球，但是对于同一束光，它需要多久才能从太阳核心到达地球？答案竟然是需要上千万年的时间。Sten Odenwald为我们解释了随机漫步问题的原理。 讲述者：Sten Odenwald 动画制作：TOTEM Studio
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