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TIL about Kerogen, a solid, insoluble organic matter found in the sedimentary rocks. When continually heated, it leads to the slow release of fossil fuels such as oil and natural gas.

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via reddit.com

j6pPj TIL the SCRAM button on nuclear reactors is an acronym for Single Control Rod Axe Man, which initially was just a guy who'd cut a rope to drop in the boron control rods in an emergency
9ZaB TIL after being in a coma for nearly 8 years, Gary Dockery awoke suddenly and spent the day catching up with family. By the next day he could no longer speak, and he soon slipped back into the coma and never woke up again.
5V1OR TIL that the majority(64%) of passengers and crew onboard the Hindenburg survived the inferno. It fell gently and many were able to jump out and run away. (Also, The deadliest airship disaster was a actually a helium airship - the uss akron)
MeJZW TIL how serial killer Dennis Rader was finally identified. In a letter to police, he asked whether they could trace a floppy disk containing his writings back to him. They replied that they couldn't, and so he sent it to a local FOX affiliate.
yNnp TIL that the French executed the father of modern Chemistry Antoine Lavoisier for tax fraud. The judge said “The republic needs neither scientists nor chemists.”