› added 9 years ago

205

TIL Germans are forced to retire at a specific age

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BgZyD TIL - the XF-84H "Thunderscreech" experimental plane had a jet powered supersonic propeller, and it was so loud that ground crews vomited, and it was reported to be heard from 25 miles away
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.
E1MPW TIL Italians have an unleavened flatbread called Piadina
mxDlM TIL Martin Luther King Jr. was a follower of Gandhi and believed in the non violence method to get rid of oppression.
Oo5Ng TIL that building the International Space Station cost more than $150 billion and is the most expensive item ever build.