What is Fermat's Theorem on Light?

Michael-H
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Hi, I'm Michael, a high schooler very passionate about physics. My favorite physics theorem is Fermat's Theorem on light. I'm also very into computer science and math. I run a physics blog. I look forward to discussions on physics forum!
 
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Hello and :welcome: !

I hope you will have fun and stay curious!

P.S.: You may link to your blog on your profile page. It is too spammy for us at other locations.
 

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Hello there, and nice to meet all of you! My name is Olga, I am from Russia. I have a PhD in laser physics, and I work at the local university. I study chalcogenide lasers. I am a pure experimentalist, and I love working with my hands, et cetera, and I do math only when I have to. Sometimes I work with biologists. I do nothing exciting in research, and after my defence, I hardly can call myself a scientist because we have a lack of financial support, and most of my time I spend on teaching...
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