A bit more than eight months ago, I blogged about an experiment from the ALPHA collaboration at CERN, about an experiment where they did some rudimentary spectroscopy of antihydrogen. Hydrogen is the simplest atom of all, with a nucleus containing a single proton, orbited by a single electron. The most interesting of these effects has to do with the "spin" of the electron, which is an inherent property making the electron behave like a tiny magnet. For certain types of orbits, the electron energy shifts up or down a tiny amount due to an interaction between the spin and the orbit. Chad OrzelThis isn't the full story, though, because the proton also has a spin, and behaves like a tiny magnet.

Source: Forbes August 07, 2017 12:42 UTC