› added 3 years ago

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TIL limonene (an extract from citrus peels) was used as an experimental liquid rocket fuel, and blanketed the entire testing area with the smell of lemon oil whenever it was fired.

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via reddit.com

oQe8 TIL in Nevada, voters can choose “None of the Above” for President. More people picked that in 2016 than ever before.
KynE TIL NASA used 3D printing to make rocket engine injector, cutting manufacturing time from 1 year to 4 months and cuts costs by 70%.
nQEo TIL in Norse mythology, during the events of Ragnörak, there is a ship made entirely of the untrimmed nails of the dead that will carry hordes to do battle with the Gods. It’s important to keep those nails trimmed so you don’t contribute to building it.
MeYr7 TIL: Compressed air is used as a battery substitute by some utility companies.
0w1mA TIL: The bassist of band Les Rallizes Dénudés hijacked a plane and now lives in North Korea