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TIL about a refrigerator in the 1920s co-designed by Albert Einstein for the poor. The Einstein–Szilard or Einstein refrigerator is an absorption refrigerator which has no moving parts, operates at constant pressure, and requires only a heat source to operate.

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xVjYo TIL that someone stole Jim Thorpe's shoes just before he competed in the Olympic decathlon. Wearing mismatched shoes (one from the garbage), he went on to win the gold medal, setting a record that stood for almost 20 years.
4XGoJ TIL early sections of San Francisco were built upon ships abandoned by prospectors during the California Gold Rush. Many were intentionally run aground to become bars and hotels. Now, hundreds of wooden ships lay beneath the city streets and a portion of their subway goes through the hull of one.
1a9y8 TIL that according to a University of Chicago study, while the joy of receiving gifts lessens over time, the psychological benefits of giving do not. Participants’ happiness hardly declined if they repeatedly bestowed gifts on others, versus repeatedly receiving those same gifts themselves.
djd9 TIL a pair of tortoises have been further into space than any human being. They went around the Moon in Zond 5, before returning to Earth. Both tortoises survived.
7rOGb TIL: In 1631, a misprint in the King James Bible turned the Seventh Commandment into "Thou shalt commit adultery". Most bibles were burned, but the few that remain have sold for thousands of pounds.