On 10-11-2012 14:32, Ed Sweet wrote:
> Toroidal planet -- spins so fast it's not a sphere or an ellipsoid, but a torus,
> like "J.P. Boyd's "Moonbow" story in Analog.
>
> Yes, I know that toroidal planets have been shown to be only "meta stable" in
> numerical simulations, and that any perturbation would cause the torus to clump
> up and collapse into a ring of debris or something...so you would need some kind
> of dynamic stabilization to keep it stable...probably not worth the trouble...
>
> but it looks cool...
>
> Modeled entirely in POVRAY.
>

In the tradition of Bill Pragnell's Knotworld and Tek's Chainworld!

Looking good. I suppose an (artificial) central gravity well is needed 
inside the torus.

Now, for a view from its surface!

Thomas

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