Einstein's famous mass-energy equivalence is also a Pythagorean relationpic.twitter.com/JtXG4VipBD
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That's how to intimidate 'em: in a conversation where nobody has mentioned the letter beta, knowingly mutter "small beta expansion".
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In accelerator physics, we have a parameterization of particle motion, with typical notation α, β, γ for the three parameters. It is extremely frustrating to use these β, γ side-by-side with their Lorentzian counterparts, and it's also just...something we have to live with
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Wow, who chose *those* letters to parametrize particle motion in accelerators? Someone who didn't know relativity... or a sadist? I was wondering why relativity has a β and γ but no α, but it turns out someone made up an α: https://en.wikipedia.org/wiki/Lorentz_factor#Definition …
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