"Seeing the Quantum Universe" It never fails. An optical recording disc, with its numerous small grooves, causes light from a hydrogen discharge tube to spread out in a rainbow. Except this rainbow is incomplete, with only a red, a cyan, a blue, and a violet line. Where are all the other colors? Hydrogen cannot make them. The electron in â*¦ Continue reading "Seeing the Quantum Universe" https://steve.cooleysekula.net/blog/2019/09/21/seeing-the-quantum-universe/ ( Feed URL: http://steve.cooleysekula.net/blog/feed/ )