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# Physics ⏎ ⏎ ## big separate tree https://knowen.org/nodes/18?path=1-18 ⏎ ## https://en.wikipedia.org/wiki/Timeline_of_fundamental_physics_discoveries ⏎ [physics in 21st century](https://math.ucr.edu/home/baez/theoretical/theoretical_web.pdf) ⏎ # Parents ⏎ * Science⏎
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