› added 12 years ago

229

TIL that if you collapse an underwater bubble with a soundwave, light is produced, and nobody knows why.

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5Y0k8 TIL Marie Curie died from exposure to X-Rays she performed on soldiers on the front lines in World War One. Not from exposure to radium in the lab as many people assume
9B5Q TIL one reason that you so often see people holding fans in ancient Japanese paintings/art is because the fan was a common self defense weapon. It had a metal rod inside, and there is an entire martial art dedicated to fighting with the fan.
0dvWR TIL Indiana Jones and the Temple of Doom is a Prequel to Raiders of the Lost Ark.
0m51 TIL Swaziland’s 1 Lilangeni coin is identical in weight and dimensions to the £1 coin and can be used in vending machines. It’s worth £0.06
R7Gvj TIL Senegal and other African countries are building a wall of trees across the width of Africa to stop the advancement of the Saharan desert.