› added 3 years ago

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TIL you’d weigh the same on Mercury as you would on Mars. Due to the much higher density of Mercury, the smaller planet has almost identical surface gravity as Mars.

Read more nssdc.gsfc.nasa.gov

via reddit.com

wLLrP TIL of 1,000-year old windmills still operating in Iran
gMvYX TIL the U.S. Air Force pays for those military fly over during sporting events to inspire a future generation. The money comes out of their training budget. In 2011 the Air Force did a fly over at the Super Bowl even though the roof was closed.
9MYr TIL outing CIA agents wasn’t made illegal until 1982 after a former agent published several bestsellers which named thousands of CIA personnel
4XDbg TIL that umbrellas commonly cause eye-injuries, and also can become dangerous projectiles from a gust of wind.
7kgZ TIL in Sweden it is legal to sell sex for money, but illegal to buy it.