zlacker

>>qqqqqu+(OP)
Bell's theorem. It somehow proves that quantum physics is incompatible with local hidden variables, but I could never see an understandable explanation (for me at least) of just how it works.

>>lpelli+ag
Minute Physics and 3brown1blue did a two part collab that simplifies some of it down to a counting problem that'd be suitable for grade school.

https://www.youtube.com/watch?v=zcqZHYo7ONs

https://www.youtube.com/watch?v=MzRCDLre1b4

>>monoca+Wl
I have seen the example with the polarized lenses in a few places, but they dont explain why (imo) the simplest explanation does not apply. Namely that the lens itself might disturb the phase of the light, which would then mean it can pass through the next lens.