› added 13 years ago

105

TIL Arabs enslaved at least twice as many Africans than what the trans-Atlantic slave trade produced

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epWYn TIL that an octopus has 3 hearts and blue blood
6Evlm TIL Georges Cuvier, the father of paleontology, established the idea of species becoming 'extinct' as a fact. Until the late 18th century, 'extinction' of species was unthinkable because god would not wipe out entire species he created for his divine plan.
XPGk TIL LSD is non-addictive, is not known to cause brain damage, has extremely low toxicity relative to dose, there have been no documented deaths from an overdose, it is physiologically well tolerated and there is no evidence for long-lasting physiological effects on the brain or other organs.
RLd8 TIL recycling aluminum uses 95% less energy than that needed to produce it from scratch—nearly 75% of the aluminum ever produced is still in use today.
xVo60 TIL NASA found 10 mins of Trampoline exercise is a better Cardio workout than 33 minutes of Running.