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TIL that every bridge and tunnel in Switzerland is designed with built in explosives so that the county can quickly be turned into a mountain fortress during times of war.

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nGQ7 TIL if a person has had part of their body crushed in an accident and trapped for more than 15 minutes, you should NOT free them without medical personnel on the scene. Crushed muscles break down into toxic byproducts, and releasing the pressure lets these flow into the body, killing the person.
ADjNw TIL the last search and rescue dog to assist after the September 11 terrorist attacks died in 2016 after retiring to be a reading dog
dD9aj TIL that Hiawatha was a real person, but Longfellow’s poem The Song of Hiawatha wasn’t really about him at all
Br69W TIL pineapple in most non-English natives is different but they share the same name.
QJyep TIL an AI named Cyc became confused by a story of a man shaving. The AI understood that people do not contain any electronic parts, but considered the man holding the electric razor as one entity, and asked if he was still a person while he was shaving.