Not a Green Psi - T-Shirt science brain shirt This minimalist science joke tee

This minimalist science joke tee is for physicists

comfortable fabric with crisp vector artwork

Perfect for thinkers

Signal sequence and Jerry Ehman’s handwritten “Wow

Great gift for science teachers

Not a Green Psi - T-Shirt science brain shirt This minimalist science joke teeMost people see a cactus. Some people see the Greek letter psi (). And a very specific group of people immediately starts thinking about wavefunctions, quantum mechanics, and whether the shirt is making fun of them. This minimalist physics T shirt celebrates that specific group. Featuring a cactus shaped psi symbol and the caption, "It's a cactus, not a green Psi, you nerd", it's the kind of joke that only works on physicists, physics students, and