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发帖数: 1994 | 1 Shadow Cone of a Total Solar Eclipse
Credit & Copyright: Olivier Staiger (High Moon)
Explanation: Sometimes, during a total eclipse of the Sun, a strange shadow of darkness can
be seen stretching off into the distance. Called a shadow cone, they are visible because the
Earth's atmosphere is not completely transparent, scattering sunlight and hence appearing
blue during the day. Shadow cones are particularly dramatic for eclipses near the horizon, as
geometry creates a long corrido |
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