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TIL One kg of uranium is equivalent to 4500 metric tons of high grade coal. That means complete fission of 1 kg uranium can produce as much heat as can be produced by complete combustion of 4500 metric tons high grade coal.

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KOj06 TIL of Franz Reichelt,an Austrian-born French tailor, inventor and parachuting pioneer, now sometimes referred to as the Flying Tailor, who is remembered for jumping to his death from the Eiffel Tower while testing a wearable parachute of his own design
1aKr TIL that the entire running budget of NASA since it’s inception in 1958 adds up to $526.18 billion. That’s about $173 billion less than the 2008 bank bailout.
9OaQ TIL that a Spanish double-agent played a major role in hoodwinking the Nazis, paving the way for a successful Normandy campaign and the eventual surrender of the Germans in WW2.
KOy4Q TIL BBC delayed the release of David Bowie's song Space Oddity due to the Moon Landing
RPM1 TIL In 2008, the Dutch voted ‘Swaffelen’ as word of the year. It means to repeatedly smack one’s penis against something