› added 10 years ago

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TIL that many laundry detergents use chemical trickery to make clothes appear whiter. They contain agents called optical brighteners that glow blue under florescent and incandescent light, making clothes appear whiter than they actually are. Incidentally, this trick does not work under LED lights.

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0w7kR TIL golf players are allowed to play the ball out of a water hazard without penalty, but it is rarely practical unless the hazard is only a few inches deep.
8aO14 TIL that in the 1840s, San Francisco a pair of stray dogs known as Bummer and Lazarus were such good rat catchers that they became famous in the city. Once, when a new dog catcher caught Lazarus, an angry mob formed. The city not only released him, but exempt both dogs from anti-stray laws.
R5pdw TIL -The honey bee is the only insect that produces food eaten by man and it only makes about a 1/12 of a teaspoon of honey in it's entire life!
ZpJwR TIL at the 1977 South African F1 Grand Prix, driver Tom Pryce struck a 19 year old race marshal at 170mph who had crossed the track without permission to deal with a broken down car. The fire extinguisher carried by the marshal struck Pryce in the head, also killing him instantly.
lYGV TIL that Flea from The Red Hot Chili Peppers was not only Nihilist # 2 in The Big Lebowski, he was also Marty McFly’s rival Needles in Back to the Future Part II and III.