Re: Galactic Gravitation...

Wayne Throop wrote:


But note also Stross' Missile Gap, where the difficulty of escaping
an alderson disk is discussed, despite the fact that the surface
gravity is "only" 1g just as on earth.

Indeed. Gravity from a point source falls with inverse square, gravity from a line source inverse linear and from a plane source it doesn't decline with distance. A sphere can be regarded as a point source. That doesn't work for the local neighborhood of our galaxy.

Hop
.

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