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big ships 
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Description
catchin big fish
Comments
Lysander
1 Photos

how far away is the horizon on perfectly spherical earth (of 6372.797 km radius) if you're 15 feet above the surface

2/18/2007 9:18:04 AM

ATLDrtybird7
17 Photos

earth is not a perfect sphere.

2/18/2007 5:24:09 PM

Lysander
1 Photos

WHAT?!

[Edited by Lysander on 2/18/2007 12:44:46 PM. Reason for edit: fine, do the math on a topologically fractal surface]

2/18/2007 5:44:38 PM

OhCheesesRice
12 Photos

The horizon is an imaginary line. AND if you were talking about the line tangent to the height of eye, then you'd look up the dip for your apparent height of eye without specification to the refraction. If with specification to refraction, I'm too lazy.

(2x6372.797x.00457(15ft))^1/2

7.632 km

[Edited by OhCheesesRice on 2/18/2007 8:44:10 PM. Reason for edit: ans.]

2/19/2007 1:31:51 AM

racerjas983
494 Photos

wow im lost... big ships seem so small...

2/22/2007 4:06:50 AM




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