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TIL The prototype of the chainsaw we are familiar with today in the timber industry was pioneered in the late 18th century by two Scottish doctors as a surgical tool to aid in the process of diffucult childbirth

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yVdkl TIL that having a small amount of insulation on a cylinder (like a pipe or water heater) can actually make it lose heat faster than if it were entirely uninsulated. This is known as the critical thickness of insulation. Having more than the critical thickness makes the heat transfer rate go down.
0wP51 TIL that Sweden switched their entire traffic system from the left side of the road to the right side in a single day in 1967 called “Dagen H”, the most logistically complex event in Sweden’s history.
EpZW TIL in The Beatles’ song “In My Life,” George Martin couldn’t play the piano as fast as the part he’d written. So, he played it an octave lower at half speed and just ran the tape back at twice the recording speed.
E61P TIL that two women born on the same day but 157 years apart, died on the same day. They both met with a friend, put on a new dress, went to a dance, and met their killers. They were killed the same way, in the same spot
ne47b TIL the earliest known entry of an internet search on the word “jihad” was in reference to a 1990s anti-Barney the Dinosaur online community called “The Jihad to Destroy Barney.”