Here’s a fun video by [Ashish Derhgawen], discussing the photoelectric effect of neon lamps with some simple demonstrations. Orange light makes it light! [Ashish] demonstrates the well-known ...
More information: J. J. Choi et al, First Direct Search for Light Dark Matter Using the NEON Experiment at a Nuclear Reactor, Physical Review Letters (2025). DOI: 10.1103/PhysRevLett.134.021802 ...