› added 6 years ago

687

TIL that since projectors cannot project the color black, they rely on an optical illusion using the darkness of a room to give the illusion of the color black.

Read more wtamu.edu

via reddit.com

VBovB TIL Snoop Dogg had produced several pornographic movies in the beginning of the 2000's
jNnmj TIL that Milada Horáková was a Czech politician who helped people flee the Nazi and Communist regimes in Czechoslovakia. She was executed for treason in 1950 just to have her verdict reversed 18 years later and receive multiple rewards for her heroic work
78PlX TIL that a "Meyer lemon" is not actually a lemon, but a hybrid between a citron and a mandarin.
vBlB TIL: There is a Blue’s Clues that teaches Lucid Dreaming
KPbw TIL the “Made in [Country]” mark was first established by the UK in 1887 in order to denounce foreign goods (mostly made in Germany) and encourage consumption of domestic goods. The plan backfired and consumers specifically bought products made in Germany as they were seen as reliable and cheap.