› added 11 years ago

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TIL World War II bomb shelters underneath London are being converted to hydroponic gardens lit with wind-powered LEDs.

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8emXX TIL that in 1933, U.S. President Roosevelt unilaterally ordered most gold in Americans' private hands to be transferred or sold to the government. Possessing more than 4 oz of gold was penalized by steep fines or up to 10 years imprisonment. Owning gold remained illegal in the U.S. until 1974.
9YOWX TIL that Hans Zimmer produced and composed the song "Big And Chunky" from Madagascar 2
xVP1D TIL of Sehmat Khan, a young Indian girl and spy who got married to a Pakistani Army Officer during the Indo-Pak war of 1971 to gain confidential information and ended up saving thousands of lives by providing information about a Naval attack.
gM408 TIL that purple is a "non-spectral color", which means that it exists only in our minds: there is no wavelength of light that corresponds to it. Our brain perceives purple when it sees a mixture of strong red and strong blue light, without any green.
YVLd TIL that the author of the first computer worm ever created was a student and it infected 6000 computers which was 10% of all computers connected to internet.