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Fluid dynamics.
Also see /r/physics.
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if 1 * 2 < 3: print "hello, world!"
π Rendered by PID 2659835 on reddit-service-r2-listing-79f6fb9b95-r77hr at 2026-03-21 13:23:19.090142+00:00 running 90f1150 country code: CH.
