› added 13 years ago

149

TIL that the long safety grooves in concrete were originally designed by NASA and have reduced highway accidents by 85%

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via reddit.com

p8VJG TIL during a simulated military exercise in the Persian Gulf, the opposing force wiped out the US fleet in just 2 days using low tech strategies. The rules of the exercise were subsequently changed to ensure an overwhelming US victory was the final result.
NN0b TIL Vantablack is the blackest black absorbing up to 99.965% of radiation in the visible spectrum
WkVvN TIL that in Israel there's a one-day holiday during which nobody drives. Originally a religious limitation, the tradition was adopted by large portions of the population, with adults and children riding bicycles and skating safely on empty, quiet streets (and even highways) across the nation
NX0pb TIL that the largest spider in the world, the Goliath Bird Eater, is edible and has been described as “shrimp-like”
6EaXY TIL Ringo Star and Carlin did voice overs for years on Thomas the Tank Engine