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TIL corpses are used as navigation and landmarks on Mount Everest

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dDXbd TIL: On the day of his audition to sing for ACDC, Brian Johnson also sang a Hoover vacuum commercial
v15j7 TIL Lula oil field in Brazil is considered to be the western hemisphere's largest oil discovery of the last 30 years.
v1jy7 TIL India’s “Go Air” airline only hires female flight attendants since they are lighter by weight, so they save up to $500,000 USD per year in fuel
jNkZv TIL in WW2 escape compasses for the RAF were sometimes hidden by being made to look like a button (unscrewing the top revealed the small compass). When the Germans found out, they changed to a reverse thread, so trying to unscrew the button the usual way tightened it instead, keeping it hidden.
mxawR TIL the young of Rhamphorhynchus and other pterosaurs are called “flaplings.”