Schrodinger's Cat was a thought experiment devised by Austrian experimental physicist Erwin Schrödinger. The “experiment” included at cat, a vial of poison, a hammer, a geiger counter, and a very small amount of a radioactive material. The material was in such a small amount that there was only a 50/50 chance of the geiger counter picking up the radioactivity. If the geiger counter did pick up the radioactivity, the hammer would break the vial, releasing the poison, and therefore killing the cat. However, as this all happened in a secure chamber with no way to observe what was happening inside, there was no way to see if the cat was dead or alive. So, the cat would be considered both, in its state of superposition.
