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TIL that bananas are slightly radioactive because of their potassium content and the small amounts of the isotope potassium-40 found in naturally occurring potassium. The banana equivalent dose (B.E.D) of radiation is sometimes used in nuclear communication to compare radiation levels and exposures.

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v1EOj TIL that the name of the Royal Navy ship HMS Petard means "HMS Fart". A petard is a small bomb that derives its name from middle French for “to break wind.” Pun-loving Shakespeare probably knew this when he wrote “hoist with his own petard” - or to be blasted with his own fart
EEko TIL that at 10 years old Mike Tyson bought $700 worth of birds after robbing someone’s home. He later got into his first fight after someone stole and decapitated one of them.
XE8vX TIL: The study of the origin of language has frustrated scientists for centuries. Due to the lack of empirical evidence to work with, the Linguistic Society of Paris banned discussion of the topic in 1866 as unproductive, a ban academic linguists observed until the late 20th century.
xVjJw TIL Eighty percent of babies in Nigeria receive pre-chewed food, as do a quarter of infants in Gabon. Ethnographers have documented premastication on every continent and in every type of society from hunter-gatherers to farmers
7J4b TIL that in winter 2010,terrorists tried to wander in Moscow wearing suicide belts with cellphones wired to their belts. When someone texts, the bomb detonates. An hour before the attack was supposed to be carried, one of the bombers received an automated text thus killing her and failing the plan.