~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SANDY SANDFORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C'punks, On Sun, 20 Aug 1995, Andrew Spring wrote:
Missile targeting software depends on good models of the earth's gravity for accuracy, both for design and for simulation purposes. . .
Not so much a model as an exact map of earth's gravity field. Twenty years ago, I was friends with a scientist who had worked for the US government some years before that. He sailed around the North Atlantic in a ship that contained extremely sensitive gravity measuring devices. He was mapping masscons on the ocean floor so that their effect on intercontinental ballistic missiles could be taken into account when targetting the missiles. The equipment was sensitive enough to measure the gravity gradient between sea level and altitude of a meter or two. Since the ship on which he sailed regularly experienced swells of that magnitude or greater, other equipment was used to measure the swells and to mathematically cancel out their effect. Cool. I can see why the folks at Ft. Meade would be hinkie about such measurements being made around them. No need to hypothisize micro-singularities or anti-gravity experiments. Occam's Razor in action. S a n d y Who must secretly work for the NSA's disinformation department. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~