› added 11 years ago

170

TIL Olympic Gold Medals are 92.5% silver

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e0pQn TIL Sweden is so good at recycling that they need to import trash to keep their plants going
78WMM TIL about Hydrokinetic energy systems, which utilize water currents. Since ocean currents are partially powered by the Moon's gravity, one can argue that we're developing Lunar Power.
4Pm6 TIL that low-background steel, which has not been contaminated by radioactive fallout from nuclear tests and is used in equipment sensitive to radiation, primarily comes from salvaged ships sunk before the Trinity test.
KOe46 TIL of a band called Tout-à-Coup Jazz. Tout-à-Coup's guitarist Thomas Sankara became the President of Burkina Faso in 1983 before being killed in a military coup organised by the singer of Tout-à-Coup.
E1dno TIL Men did not use to wear wristwatches because they were seen as feminine. It was only after World War 1 when men started wearing wristwatches because they were proven useful in the war.