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(17B) (19B) (27S) Percentage of Sphere's Surface Visible for Height Above Surface
04-02-2019, 01:46 PM (This post was last modified: 04-02-2019 03:19 PM by SlideRule.)
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RE: (17B) (19B) (27S) Percentage of Sphere's Surface Visible for Height Above Surface
An interesting formulation from 1913
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as well as an un-referenced web source …
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BEST!
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RE: (17B) (19B) (27S) Percentage of Sphere's Surface Visible for Height Above Surface - SlideRule - 04-02-2019 01:46 PM



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