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Re: Re[4]: [ATM] Use of bearings in (static) mirror cells



Dave,

> How much more can one improve on the wheel?

This article might be of interest:
http://forums.machinedesign.com/eve/ubb.x/a/tpc/f/8990016462/m/3020031572

-Don

BTW, didn't Hale invent the Spectroheliograph?

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