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TIL lead can and has been turned into gold through a process called nuclear transmutation, but the expenses of the procedure far exceed any gain from the value of the resulting gold.

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nenOo TIL in 1913 John Rockefeller owned 2% of the US GDP, an amount that today would be worth over $409 billion and make him 3 times richer than Jeff Bezos
EBOP TIL Chess has been used as psychotherapy help for social problems such as ADD/ADHD, alcohol and drug abuse, Asperger’s, Autism, schizophrenia, along with helping prison inmates.
BrlnD TIL Octopuses are immune to the stings of various types of jellyfish. They know this and will often rip off the stings of man-o-war (species closely related to jellyfish) and use them as whips to defend themselves from larger predators.
QJ56e TIL There exists such a thing as ketchup cookies
GY8mG TIL the NFL requires every team to be owned by one owner or a small group, one of which must hold 1/3+ of the shares. The Packers are the only exception, community owned disallowing any single owner to own more than 200,000 shares.