› added 8 months ago

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TIL that humans can produce light through bioluminescence, but it's usually too faint for our eyes to detect.

Read more journals.plos.org

via reddit.com

WWRL TIL that McDonald’s chairs were uncomfortable on purpose so people wouldn’t hang around after their meal. This way they could serve more people
NoLQ TIL Charles Darwin married his first cousin Emma Wedgwood, before having 10 children, three of which died before the age of 11. This lead him to wonder whether close genetic matches had an impact on health, adding to his theory of evolution and the passing of traits to offspring.
lMQa TIL: Medical Bills Are the Biggest Cause of US Bankruptcies
xKx7 TIL a man in China bought a first class ticket on China Eastern Airlines, went to the airport every day for almost a year, ate food for free at their lounge, changed his ticket for the next day after eating about 300 times, then cancelled his ticket for a full refund before validity expired.
X0vD6 TIL a teen got hyperacusis after an airhorn was blasted near her ear. Her type of hyperacusis makes her so sensitive to sound that it hurts and caused her to drop out of school because the voices of teachers were too painful. She also needs special noise cancelling headphones at the mall.