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TIL Alexei Leonov, the first man to perform a spacewalk, almost wasn't able to get back in the capsule as his suit had expanded in the vacuum of space. Many problems plagued the mission including a poor landing 240mi off course forcing the 2 man crew to survive for 2 days in the freezing wilderness.

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8eEyG TIL unprotected sex with an HIV-positive person who has acute HIV infection could carry a transmission risk of up to 2% (the equivalent of 1 transmission per 50 exposures) for receptive vaginal sex and over 20% (equivalent to 1 transmission per 5 exposures) for receptive anal sex.
16aa8 TIL naked mole rats can survive 18 minutes without oxygen by metabolizing fructose instead of glucose.
lRoB TIL football player Mardy Gilyard was kicked out of the University of Cincinnati and owed the school $10,000. He then worked 4 jobs simultaneously and slept in his car just to get back into school, eventually becoming the leading wide receiver in UC history.
5Yw6P TIL that after being killed by Partisans, Mussolini was dumped in Piazzale Loreto, where in 1944 he had 15 partisans murdered and publicly displayed. His corpse was kicked, pissed on, and shot at by the Italian crowd, and he was hung upside-down with a meathook along with other Fascists.
LXm0 TIL that a recent survey showed that 29% of Americans thought cloud computing had something to do with an actual cloud, the sky, or something relating to the weather. 51% believed that bad weather would interfere with it.