› added 7 years ago

103

TIL the Colosseum was built in just 10 years

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wL0pE TIL that the brain is more active while asleep than it is awake. The brain while awake averages 40-60 observations per second, while the subconscious brain averages 11 million!
rPZx TIL Hippos sleep underwater and rise to breathe every few minutes without waking.
JYr9Q TIL the USA nuclear missile fleet is controlled by 1960’s computers with no internet to prevent hacking.
pYokA TIL in the 1950s, WHO sprayed DDT in Borneo to fight malaria, inadvertently killing cats. This led to a rat surge and outbreaks of typhus and plague. To counter this, the RAF parachuted 14,000 cats in "Operation Cat Drop."
PeZG TIL Branden Lee was originally cast as Johnny Cage in the 1995 Mortal Kombat movie, until he died while filming The Crow