The Limb of the Sun04:33

Also, why do some flames look hollow? Thanks to for sponsoring this video.

More information about:

Limb darkening –

Optical Depth –

Limb darkening –

Limb darkening and exoplanets –

Measuring the solar radius using limb darkening! –

Halo nebulas –

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Minute Physics provides an energetic and entertaining view of old and new problems in physics — all in a minute! Created by Henry Reich