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Processes in particle physics demonstrate arrow of time
Macroscopic processes are usually not completely reversible: you can’t unmix or unbake cake, and perfume released from a bottle won’t spontaneously recollect. However, these phenomena involve huge...
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When the reverse of reverse isn’t forward: weird symmetry in uranium compound
Typically, reversing the direction of time twice is the same as never reversing it at all. Think of running an old-fashioned filmstrip backward, then forward (not an unusual experience for those of us...
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We are bound by symmetry
I’m in a magazine! Physics is largely a matter of finding patterns in natural processes and translating that to mathematical expression. That’s a horribly oversimplified view, of course, but there’s no...
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Emmy Noether and her wonderful theorem
[ This blog is dedicated to tracking my most recent publications. Subscribe to the feed to keep up with all the science stories I write! ] Mathematician to know: Emmy Noether Noether’s theorem is a...
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