› added 5 years ago

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TIL: Rusting gears, beams, & wheels on the coast in Marseille show where an innovative ride was. One could pay to use a special cable car that ran underwater. For safety, pro divers went with the tourists as the pods skimmed along the seabed. It opened in 1966, was shut down after around one year.

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via reddit.com

yQR8a TIL that the Moon has a crust, mantle, and core, experiences "moonquakes," and once had active volcanoes
e0MXD TIL about the Antarctic Snow Cruiser. An impressive 1930's mobile research base that had a short lived, problem riddled expedition on Antarctica before it was abandoned at the start of WWII. Its current location is unknown.
e0yVJ TIL that when Gemini XII's computer docking system failed, Buzz Aldrin calculated the docking trajectory using a slide-rule and a sextant.
GAWLJ TIL that all Ashkenazi Jews are at most 30th cousins because of a genetic bottleneck about 700 years ago.
gQoD TIL there is a super rare blood type called RH Null that only around 10-40 people in the world have.