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TIL that the teeth of the sea snail is the strongest biological material discovered to date

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via reddit.com

WaEN TIL in 1880 Alex Graham Bell, inventor of the telephone, also invented the photophone, a device that transmits sound using visible light. Although he called it his greatest invention, it wasn’t until the 1980s, over a century later, that it precursed fibre optics, the backbone of the modern Internet
xVvB1 TIL that Edwin Hubble broke the state record in the high jump, and went on to play basketball for the University of Chicago. He won a Rhodes scholarship and studied law at Oxford. He earned a Ph.D. in astronomy, but practiced law in Kentucky.
ANVl TIL, an explorer named 7 mountains after his wife’s nipple
wGgM TIL the chains that you can see hanging under school buses and trucks are there to provide traction in snow. With the flip of a switch, the chains will lower automatically and the centrifugal force sends the chains into action. [Video]
kMpd TIL “This Is Us” star Chrissy Metz is contractually obligated to lose weight as her character’s journey progresses throughout the show. She considers it a win-win.