> At 08:48 AM 2/8/98 -0800, Yax wrote:
>
> >--Wax (gone to search Damien's book for errors)
>
> They're on pp. 18, 60, 223, 254 (the last two being really stupidly
> careless references to the `lenses' of the Hubble Space Telescope - which
> is a refractive device, using mirrors).
As it happens, most big telescopes -- including the Hubble -- use
both lenses and mirrors.
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