There are experiments like this! One is where circularly polarized light is used to spin up a small piece of glass to really high angular velocity (billions of

There are experiments like this! One is where circularly polarized light is used to spin up a small piece of glass to really high angular velocity (billions of rotations per second!) [1]. There are also atomic transition selection rules that depend photons transferring angular momentum into or out of an atom electronic orbitals. Essentially, when an electron jumps between the orbitals (s, p, d, etc from chemistry class), it can gain or lose angular momentum depending on its start and end state. But that momentum must be conserved, so in these cases a photon is emitted or absorbed to account for that angular momentum. The topic is kind of addressed here [2], but I'd have to dig up my old AMO notes to find a better reference. Lots of cool physics to dive into here if you're interested! [1] - https://phys.org/news/2018-07-world-fastest-rotation.html https://phys.org/news/2018-07-world-fastest-rotation.html [2] - https://en.wikipedia.org/wiki/Angular_momentum_coupling#Term_symbols https://en.wikipedia.org/wiki/Angular_momentum_coupling#Term...