Re: [好奇] 陽光 = 平行光?

[JohnMash (John)]

※ 引述《Baumgartner (Minardi NO.1 ><)》之銘言：
:      國中物理有教過太陽因為離地球太遠，陽光可視為平行光。
:      今天早上看到陽光透出雲層，類似這樣
:      http://www.flickr.com/photos/irenelo_913/2466956073/
:      突然好奇心大起，假如是平行光，理論上每一條透出來的光線都會平行才對啊
:      為何每一條是輻射狀散開的呢？


    diffusion: photon random scattering due to

               the collision with air particle

   If you are on the moon, there is no diffusion.

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噓 jerry78424:photons scatter randomly.......air particles
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推 pedroremorse:用hyphen可以避免很多不必要的誤解 讓文字更親切易讀