How do I make a mirror out of aluminum foil?
If you want your mirror to just reflect light and heat, there are two philosophiesThe first is to crumple the foil and then straighten it so the light reflects from many angles and bounces over a wide angleThe second goal is to focus the incoming light into a focused point at a given distance from the mirrorThis is done by converting the smooth aluminum foil into a parabolic shape with the target at the focal point of the parabolaThe mathematics for defining the required parabolic curve are too involved to include hereHowever, if you want to reflect a faithful image from a sheet of aluminum foil, the answer is: you can'tAluminum foil is rolled thin by rollers that are not polished smoothThe foil is too thin to polish furtherMy suggestion is to forget the mirror and use the foil for grilling chicken.
