Einstein and Szilard actually patented a refrigerator design [1]; AFAIK it was never commercialized. If you're reading this and know about refrigeration tech,

Einstein and Szilard actually patented a refrigerator design [1]; AFAIK it was never commercialized. If you're reading this and know about refrigeration tech, you might be able to contribute to the Wikipedia article; it's been tagged as "needs attention from an expert in Technology" since 2008. https://en.wikipedia.org/wiki/Einstein_refrigerator https://en.wikipedia.org/wiki/Einstein_refrigerator