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Focault Test

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Posted by John Suback/">John Suback on September 4, 1999 18:58:11 UTC

I was wondering if I had to build a focault aperatus (sorry about the spelling)in order to test my mirror, or could just hold the source and the knife edge. also the light source and the knife should be at the radius of curv. correct? and also what is the source, a pinhole, a slit, or something else? Thank You!

P.S. I don't really need to do this because, but I would like to know. Also, if you have any suggestions about a turned up edge, I would love to know. Thanks Again!

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