Am 23.06.2010 09:50, schrieb Thomas de Groot:

>> I didn't realize a) that the sun was so large WRT the ring, and b) that
>> the inner "shadow" ring was so much nearer the outer ring than the sun.
>>
>
> Nice animation indeed, but:
> The shadow squares are wrong. According to Niven, they are located at the
> equivalent of the orbit of Mercury, if the ring were at Earth's distance.

To be precise, the shadow squares aren't "wrong" - it's just "some" ring 
world, not the one from Niven's books.

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