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TIL: the speed of light can be slowed down
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nature.com
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reddit.com
7rWNP
Dolphins purposefully get pricked by Pufferfish to get high.
kJVPB
TIL that NASA lost a $330m Mars Orbiter in 1999, immediately before mars orbit was achieved, because one of the contracted US companies used imperial units instead of metric.
xex1
TIL the International Space Station usually sees the sun “rise” once every 90 minutes
R5RY6
TIL of The British Doctor's Study of 40,000 doctors was a 50 year long study that was the first to provide evidence of a causal link between smoking and lung cancer.
ADQNo
TIL while filming Pirates of the Caribbean in London, Johnny Depp received a letter from a local 9 year old girl, who asked for help with "munity" against her teachers. Depp turned up with no warning at the school in full Jack Sparrow outfit, but advised against munity.