|MadSci Network: Physics|
The other day when cleaning up my stuff in our cafeteria I noticed something I had seen before and have always wondered about. I looked through one of the glass, or thick see-through plastic, pieces of wall which seemed to be randomly scratched. With that I mean pretty equally in all directions. I noticed that when you look through it in the direction of a light-source you always see these scratches in 'circles' around the light-source. Why is this, when they are randomly scratched? Thanks already for the trouble.
Re: Why do scratches in glass alway seem to form circles around light-sources?
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