the.com/psi
A Greek letter that physics uses for the wave function and that parapsychology borrowed as a symbol for the psychic.
means The 23rd letter of the Greek alphabet, used in physics and math to denote wave functions and other quantities, and in psychology as shorthand for 'psychic' or 'mind'-related phenomena.
from From the Greek letter psi (Ψ, ψ), whose own origin is uncertain — it may descend from a Phoenician letter, though scholars don't agree on which. It entered English vocabulary less as a word and more as a symbol: scientists needed a character for 'wave function' in quantum mechanics, and parapsychologists later borrowed the same letter to stand in for 'psychic,' since psi already started the Greek words for soul and mind, like psyche.
- wave function
- represents quantum states in Schrodinger's equation
- pressure unit
- pounds per square inch, same letters, zero relation
- pseudoscience nod
- shorthand for psychic phenomena in parapsychology
- alphabet rank
- 23rd letter of the Greek alphabet