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TIL While on the Moon, astronauts did not have any data to tell how long the small water tank used for cooling in their backpacks would last. After returning to and repressurizing the Lunar Module, they could drain and measure remaining water in the backpacks to confirm the predicted

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e4Kk TIL when someone says they’re allergic to dust, they are actually allergic to the feces left behind by a house dust mite that it secreted onto the dead skin cell.
GvxN TIL that there is a man in Sweden who received disability benefits for his “addiction” to heavy metal. He reportedly went to 300 concerts in one year which left him unable to hold down a job.
W7yG4 TIL the telemarketing industry relies on prison labor
AAMx TIL Bill Nye has gotten three honorary Doctorate Degrees, for being Bill Nye.
6EJdY TIL that most of the 9/11 hijackers had no idea that they were on a suicide mission. Evidence shows that the majority likely believed that they were taking the planes hostage as a means of leveraging the release of Al-Qaeda prisoners. Only the men trained to fly the planes knew the truth.