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TIL Some airplane cushions have charcoal filters in them to stealthily hide farts due to the change in air pressure

Read more science.howstuffworks.com

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jNvnM TIL To prepare for the 2012 London Olympic Games, a city cleanup crew spent 3 months steam cleaning 300,000 pieces of gum off less than 2 miles of street
Y5OA TIL a female doctor from brazil, after being fed up from burglars jumping over her fence and steal her belongings, tapped dozen of HIV-infected syringes atop her metal fence with a warning board saying, ”Wall with HIV positive blood. No trespassing.”
b9NVN TIL that two cars crashing head-on at 50 mph is not comparable to one car hitting a wall at 100 mph. "Although the two-car crash doubles the speed, the energy [of] the crash is transferred to twice the mass resulting in a crash that looks like just one car hitting a wall at 50 mph."
yPpp TIL Female Stingrays have the ability to store sperm for long periods of time to become pregnant whenever they want.
mPER TIL the 13th century ‘Latin Book of the Civilized Man’ included such advice as 'If there is something you do not want people to know, do not tell it to your wife.’