› added 4 years ago

119

TIL Stars don't twinkle in outer space. The refraction of light from earth's atmosphere is why we see them twinkle.

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gZr8 TIL that a 4-year-old child was shipped through the United States parcel service for $0.53 in 1914.
QNNge TIL The discovery of vitamin D curing rickets in the 1930s led to the fortification of common foods. This took the statistics of approximately 80–90% of children showing varying degrees of bone deformations due to vitamin D deficiency to being a very rare condition.
Mv8A TIL of ‘Paris Syndrome ’ where tourists suffer psychological distress or shock when the city does not live up th their expectations. It is common with Japanese tourists.
4XYAb TIL: that in some cultures you never shake someone's left hand, or use the left hand to hand anything to anyone, because it's the "dirty hand"...
5YBgB TIL that Issus Coleopratus nymphs have functioning mechanical gears on their thighs that they use to synchronize their leg movements when jumping