I'm glad he didn't try. As a 15yo my teen friend and I spent half a summer grinding a 6" mirror. Then we were told to Foucault-test the mirror. We couldn't und

I'm glad he didn't try. As a 15yo my teen friend and I spent half a summer grinding a 6" mirror. Then we were told to Foucault-test the mirror. We couldn't understand the included instructions. We lived in the middle of nowhere, noone to ask, internet didn't exist, library had bupkis. If we had figured it out, we'd still have had to mail it somewhere to be aluminized. End of story. Few people make their own ICs anymore either.