Re: This should 8 inch mile
From: John C. Polasek (jpolasek_at_cfl.rr.com)
Date: 06/30/04
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Date: Wed, 30 Jun 2004 23:41:31 GMT
On Tue, 29 Jun 2004 16:42:40 -0400, GravityPhysics@webtv.net (tj
Frazir) wrote:
>I can see that curve threw the bigeyes binocurars . Looking at another
>ship 10 miles away looks like its sitting on the other side of a hill.
>Yes for evry 8 inch up the observer is the horisen is 1 mile. 56 inches
>is 5.1 miles.
>200 feet is 300 miles . With a red laser I can paint and watch threw
>blue haze with Infered
>at night . Not the nightvision system at all.
>In the day 100 miles is the normal max but night I can see a ship 400
>miles away if its as tall as we are . Looking threw the zoom cam 100
>miles away you can see the earth curve from 100 feet up.
> Its a cam on the same gyro the sat/ dish uses .
> We modified the zzoom can to a gyro you can manipulate like the one
>that tracts the satelite for comunications . I use them above and below
>the ship.
TJ: the required height H goes up with the square of horizon L. It's
8" up for 1 mile horizon L, but for 2 miles you have to be up 4 times
as high, namely 2.667 ft. Here's a couple of values:
1 mi .667 ft = 1 x .667 = 8"
2 2.667 = 4 x .667
3 6 = 9 x .667
4 10.667 = 16 x .667
5 16.67
6 24.00
You can have H = L^2/2R or L = sqrt(2RH).
Mr. Dual Space
(If you have something to say, write an equation.
If you have nothing to say, write an essay).
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