› added 6 years ago

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TIL When it rains, people publish more negative posts on Facebook. Each negative post negatively affects one to two other people. The negative post spreads like contagion, negatively affecting people's moods in cities without rainfall. Social networks magnify the synchronisation of global moods.

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gb9A TIL the US navy simulated a naval battle against the Iranian navy and lost… Badly.
BrAe TIL North Korea have dug several tunnels under the DMZ since the 60s, each large enough to move 2000 troops into the South in under an hour
yQgKJ TIL that sea otters hold hands while they sleep so they don't drift apart.
wDY6 TIL that French people name their dog according to the year. An alphabet letter is allotted to each year (except K, Q, W, X, Y, Z); the dog’s name starts with the letter. So, if you know a dog’s name, you know its age.
m14bo TIL webcams were first invented in 1993 as a way to check for coffee at Cambridge University