archive: Re: SETI modulation of ETI transmission

Re: SETI modulation of ETI transmission

David Woolley ( david@djwhome.demon.co.uk )
Mon, 31 Aug 1998 20:33:03 +0100 (BST)

> For this to happen, Matthew, the two planets would have to have the same
> radius, and the same rotational rate (but in opposite directions), and the
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the same direction