› added 11 months ago

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TIL, Ohio was the birthplace of the first people to fly in a plane, the first man on the moon, and 24 astronauts

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via reddit.com

Vde8 TIL Leonardo da Vinci not only conceptualized the world’s first self-propelled vehicle and crank-powered armored car (tank), but also possibly constructed the world’s first humanoid robot - more than 500 years ago.
JYM6k TIL when Italian researchers gave lab rats MDMA (ecstasy) and played loud music, they broke out in a full blown orgy.
xVxWB TIL photoelectric smoke alarms are highly effective at detecting smoldering fires, provide adequate protection from flaming fires. Fire safety experts recommend installing a combination alarm, that either detect both heat and smoke or use both the ionization & photoelectric smoke sensing methods.
GYnVG TIL that 5000 janitors in America have PHDs.
rNB01 TIL the Roman plebeian Publius Afranius Potitus vowed to sacrifice his life if Emperor Caligula recovered from his illness. He expected to be rewarded for his loyalty, but was shocked when he was expected to carry out his oath after Caligula recovered. He tried to renege, but was executed.