Re: o/t science question about land leveling

Posted by Gerald J. on March 24, 2007 at 16:53:05 from (67.0.103.139):

In Reply to: o/t science question about land leveling posted by workhorse on March 24, 2007 at 07:29:33:

Depends on how you reckon the land is flat. If you do it with a gravity operated level, the land will have the same hump in the middle as the water above it. If you level the land with a laser resting at one spot, like a corner, the land won't have that hump in the middle and the water will be deeper there.

How much deeper? Mathmatically,
0.7 * 5280 * 12 * (1.0 - cos (0.7 / 69 degrees)) inches which my calculator says is 0.000696 inches. That's a bit smaller than the laser beam used to flatten the patch.

Gerald J.

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