› added 8 months ago

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TIL that the speed of light was first measured accurately in 1676 by Danish astronomer Ole Rømer using observations of Jupiter’s moons, without modern technology

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via reddit.com

woOpE TIL Pinball was illegal in Oakland until 2014.
lpeV TIL Merriam-Webster’s headquarters in Springfield, MA has had a strict “silence” policy for over 60 years. Before email communication was conducted either behind closed doors or via 3x5 notecards.
nYO7 TIL Disneyworld has secret treasure hunts. You go to a little shop cart and get one of 5 treasure maps. You then search around Adventure land for hidden NFC readers that activate with your Passcard. One was in the gift shop and it activated a whole shipwreck show inside a fish tank!
1X78 TIL Neptune was the first planet to get its existence predicted by calculations before it was actually seen by a telescope.
MBl8 TIL Dr. Hans Munch, a German physician at Auschwitz, refused to take part in the inmate murders there. He designed his experiments to be elaborate ruses to protect them, since those who were no longer useful were usually killed.