Fwd: [GZG] A scratchbuilt Ringworld/Halo

Ooops, that should have been a *radius* of 1,850,000 km, so the  
diameter would be about 26 times that of Jupiter.

Best regards, Robert Bryett
rbryett@mail.com

Begin forwarded message:

> From: Robert N Bryett <rbryett@mail.com>
> Date: 21 February 2006 9:08:28 AM
> To: gzg-l@lists.csua.berkeley.edu
> Subject: Re: [GZG] A scratchbuilt Ringworld/Halo
> Reply-To: gzg-l@lists.csua.berkeley.edu
>
> >>>>Well, another take on this is that it doesn't have to be a  
> Niven-esque ringworld.  It could be like Halo - huge, but repacing  
> a planet in orbit around the sun, rather than being a ring defining  
> the orbit.<<<<
>
> Make the ring about 1,850,000km in diameter, and the rotation  
> required to produce a pseudo-gravity of 1g would be one revolution  
> per Earth day, and an inclined, edge-on-to-the-sun orientation  
> would produce a fairly natural day-night cycle. This little  
> construction project would have a diameter roughly 13 times that of  
> Jupiter, and you'd "only" need to make the ring about 15Km wide  
> substantially to exceed the total land surface of the Earth...
>
> Best regards, Robert Bryett
> rbryett@mail.com
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