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Re: Ah, give someone a calculator.......
From: Marcel Tschudin
Date: 2010 Aug 15, 21:03 +0300
From: Marcel Tschudin
Date: 2010 Aug 15, 21:03 +0300
On Sun, Aug 15, 2010 at 8:24 PM, Gary LaPookwrote: > (mercury barometers were the standard way to measure atmospheric pressure), Yes. But I was used to higher values measured in mm and not to such low "strange" values measured in inches. Well at one point I finally found it out ... You wrote: "Giving it some more thought, since the maximum diameter of the earth is only 7926 SM, to be able to measure 8000 SM you would need to drill a hole through the center and out the opposite side and then have a satellite fly over the opposite opening at an altitude of 74 SM and shine a powerful light down through the hole so that you can see it from your side." Instead of putting such satellite in a circling orbit you just could drop it from a height of 74SM down the howl. Assuming no frictional losses you would have now a sort of pendulum satellite; the pendulum having a frequency corresponding to the time of revolution of a circling satellite. Marcel