Two chemists go into a restaurant. The first one says "I think I'll have an H2O." The second one says "I think I'll have an H2O too" - and he died. 618 0
Two students talk: "What are you reading?" "Quantum physics theory book." "But why are you reading it upside-down?" "It makes no difference anyway." 22000 3
Q: Why was the mole of oxygen molecules excited when he walked out of the singles bar? A: He got Avogadro's number! 1698 5
