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TIL Your heartbeat changes and mimics the music you listen to

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xdk TIL that the Romans had all the necessary mechanical devices to build a steam engine
9w1dM TIL that the initial title of Alien was Star Beast. Its writer disliked it and changed it to Alien after noting the number of times that the word appeared in the script. The writer and his cowriter liked the new title's simplicity and its double meaning as both a noun and an adjective.
DQGBY TIL a 1970's startup tried to design a flying car by attaching Cessna wings to a Ford Pinto. After a test pilot was forced to land early, a second test flight was conducted on Sept 11, 1973, by the startup's two founders themselves, both of whom were killed in the fiery crash that followed.
GAxJ4 TIL higher educational level is significantly associated with smaller breast size preference
OoXa TIL A man drove his 1990 Honda Accord for one million miles and was thrown a parade by Honda itself.