› added 3 days ago

TIL that 4/20 was started by a group of High Schoolers in sunny San Rafael, California.

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via reddit.com

8aa6L TIL Thomas Edison didn’t invent the lightbulb. He merely improved Joseph Swan’s design which had been patented 10 years before Edison. Swan sued Edison for patent infringement and won.
dD8N8 TIL that mice have a resting heart rate that ranges from 500-700 bpm, while a normal person is only 60-100
XWO8 TIL that According to ancient Greek literature, when Odysseus arrived home after an absence of 20 years, disguised as a beggar, the only one to recognize him was his aged dog Argos, who wagged his tail at his master, and then died.
6DZ TIL that some animals have a ‘third eye’ part of the pineal gland that helps regulate circadian rhythms
b9vNE TIL in 1856 an American clipper was approaching Cape Horn when its captain collapsed, leaving his 19-year-old wife to navigate through one of the world's deadliest sea passages. She commanded for 56 days, faced down a mutiny, and navigated the clipper ship into San Francisco