On Mon, 17 Nov 1997, Jeanine M. Pedersen wrote:

> I believe the second _Foundation_ book has what Asimov refers to as a "ribbon
> planet".  It's one of the last planets that the Mule takes over & it's where
> the rebellion against the Foundation is seated -- it's also where Arkadia's
> father comes from.  It has been along time since I read the books & I really
> don't remember more details than that -- I think -- but wouldn't lay money on
> it -- that the name of the book is _Foundation & Empire_
>
        Jeanine's comment reminds me that any of Larry Niven's _Ringworld_
stories are about a world where only one side of the planet faces the sun
(the inside!).  I can't think of any fictions involving Dyson spheres,
but they'd qualify too.  In fact you could push the definition to the
screaming point and say that "hollow Earth" stories (like Burrough's
Pellucidar) qualify...

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David W. Sisk           Assistant Director for Academic Computing
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