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Mirror Grinding

Several members of the club grind their own mirrors for home made telescopes.  Mirror grinding is a long and laborious, albeit rewarding, process.  Round disks of glass are ground to a parabolic shape (a shape that brings parallel rays of light to a focus) and then sent away to be "silvered".  The "silvered" mirrors are to be used for Newtonian style reflecting telescopes.

Holiday Party WOW Mirror Grinding Astronomy Day Transit of Venus Fermilab


Dave Juckem explains the process of mirror grinding.
Dave Juckem demonstrates the art of  mirror grinding.