From Neptune to Viruses

If you’re in quantum mechanics, you probably see this Greek symbol often. But did you know that it’s also used in psychiatry, mathematics, biochemistry, pharmacology, and even as Indiana University’s logo! Its trident shape means that it is associated with Poseidon, the Greek god of the sea. Thanks to the Romans (taking things from the Greek) and astronomers naming planets after Roman gods, the “psi” symbol now also represents Neptune (the planet). Purchase this versatile Greek letter for yourself or buy it for a friend. It makes a great gift for astronomers, biochemists, math people, and budding psychiatrists.