View full lesson: http://ed.ted.com/lessons/sunlight-is-way-older-than-you-think-sten-odenwald
It takes light a zippy 8 minutes to reach Earth from the surface of the Sun. But how long does it take that same light to travel from the Sun’s core to its surface? Oddly enough, the answer is many thousands of years. Sten Odenwald explains why by illustrating the random walk problem.
Lesson by Sten Odenwald, animation by TOTEM Studio.
Tagged under: Light,Sun,Speed light,Photons,Sun' core,Matter,Energy,Wavelength,Ultraviolet light,X-rays,Random walk problem,Protons,Density,Fusion reaction,Radiative zone,Convective zone
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