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TIL the official measure/definition of a second (time): The duration of 9,192,631,770 ‘oscillations’ of a Caesium 133 atom at rest and at absolute zero temperature

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pYBY4 TIL The second Prime Minister of India, Lal Bahadur Shastri, died in mysterious circumstances in 1966. No autopsy was ever performed, the Indian Government released no information about his death, and the media was kept silent. His death is considered to be one India's biggest unsolved mysteries.
ovoL TIL A smart phone’s nanotech based accelerometer can tell when it is being dropped and allow the phone to shut down parts of its hardware to protect it. That is why you see a lot of cracked glass on perfectly usable iPhones.
x6jQ0 Today I learned that a prehistoric shark with teeth shaped like a buzz saw once existed, nicknamed the “Buzzsaw Killer”
jNmGN TIL: Plastic bags were created to be reusable to reduce waste and save the planet, saving trees from being chopped down for paper bags
8e7RX TIL that the echidna urethra starts as a single tube, but toward the end of the penis it splits into two and each of these then splits again – resulting in each of the four branches ending up at one of the four glans.