› added 3 years ago

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TIL space shuttles' main engines burn cryogenic propellant at ~3500K (hot enough to boil iron). They are fueled by cooling channels built-in to the nozzles themselves, which simultaneously cool the nozzle at a steady state while fueling the engine.

Read more history.nasa.gov

via reddit.com

EgeP7 TIL the first cables laid cross the Atlantic Ocean were insulated with hemp.
XEZRR TIL that English has no future tense. Every time we talk about the future, we talk about it in the present tense, like “I am going to the airport” or “I will start school next week.” Even “will” expresses intention in the present and not the future.
78wMX TIL AmaPiano's name originally comes from the artists playing a keyboard without any notable direction other than a house music beat playing
NXvXP TIL about the Argument from incomplete devastation. The argument is a form of argument from observed miracles. Plane crashes, 200 died, 1 survived, there is a God.
BJ4x TIL Jesse Jackson, Jr. and his wife were sentenced to jail for using $750,000 in campaign money for over 3000 personal purchases that included a Michael Jackson fedora and cashmere capes.