Michael Allan Physics and Chemistry with Free Electrons

Green Ray

Do you see the green ray on the top of the sun? This comes only under rare atmosheric conditions. You need long focal length lens to take a photo or a video — mine has f = 1 m (MTO-11).

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NEVER LOOK INTO THE SUN!

14. August 2016, Kaiseregg Pass, Fribourg, Switzerland.

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Another Green Ray

26. December 2020, 16h43min, Dietisberg, Wünnewil, Fribourg, Switzerland.

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videos

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26. December 2020, 16h43min, Dietisberg, Wünnewil, Fribourg, Switzerland.

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