OK, my mind just blew up. Am I the last one who has played Half Life or Half Life 2 to see what the weird "h" symbol is? As shown in this image it's mind blowing. Found via this thread on reddit....
That's cool, but I always assumed it was lambda...
"The radioactive decay constant (Connected to half-life of a radioactive isotope in physics)"
It is a lambda. What philip said. Lambda complex (ingame location) is used to determine the half life of radioactive isotope. connection?