Griffiths Introduction to Elementary Particles · Problem 4.39
Bound States — David J. Griffiths
Physics — QFT · parity-violation-communication
Problem
Suppose you wanted to inform someone on a distant galaxy that humans have their hearts on the left side. How could you communicate this unambiguously, without sending an actual ``handed'' object (such as a corkscrew, a circularly polarized light beam, or a neutrino). For all you know their galaxy may be made of antimatter. You cannot afford to wait for any replies, but you are allowed to use English.