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Re: ATM magnetic altitude bearings


Jerry writes,

>and one must not forget the hydrostatic [floating] mercury bearings on the
100
>inch hooker telescope on mount wilson... c 1920's

There's also the Sacramento Peak (Sunspot) tower telescope, 200'+ tall,
the whole thing rotates on a mercury pool IIRC. 


Andy Saulietis
ISS Enterprises
39 Silver Fox Trail
Mayhill NM 88339
505-687-3067 voice
505-687-3021 fax, call voice or e-mail to set up
e-mail: iss@pvtnetworks.net