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(17B) (19B) (27S) Percentage of Sphere's Surface Visible for Height Above Surface
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(17B) (19B) (27S) Percentage of Sphere's Surface Visible for Height Above Surface
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(17B) (19B) (27S) Percentage of Sphere's Surface Visible for Height Above Surface
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04-01-2019, 10:51 PM
(This post was last modified: 04-02-2019 07:44 AM by StephenG1CMZ.)
Post: #2
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RE: (17B) (19B) (27S) Percentage of Sphere's Surface Visible for Height Above Surface
I was just wondering whether this formula holds up if the height were negative (for example, if the GPS shows you in a valley).
I'm thinking in such a case the physics would suggest 100% visible (for a hollow sphere or Earth), or 0% (for an opaque sphere or Earth), rather than a negative value. Geometrically, I think I'd choose 100% - except its the interior of the surface you can see, not the outside. Perhaps - 100%? With the negative flagging an interior view? I'm not sure what result would be preferred. Stephen Lewkowicz (G1CMZ) https://my.numworks.com/python/steveg1cmz |
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(17B) (19B) (27S) Percentage of Sphere's Surface Visible for Height Above Surface - ijabbott - 03-31-2019, 05:13 PM
RE: (17B) (19B) (27S) Percentage of Sphere's Surface Visible for Height Above Surface - StephenG1CMZ - 04-01-2019 10:51 PM
RE: (17B) (19B) (27S) Percentage of Sphere's Surface Visible for Height Above Surface - ijabbott - 04-02-2019, 07:40 AM
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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