"Electron spin is like a turntable with only forward and backward settings at a single speed, with the power cord wired directly into the mains so it can't be shut off. It's always spinning in one direction or the other."
"The electron's spin is like a tiny magnetic moment arising from the electron spinning about its own axis."
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.