› added 2 months ago

11

TIL that there is a cat version of HIV called FIV

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via reddit.com

5YVrD You know the smell. It’s hard to describe, but the second you step on an airplane, a flood of familiarity flies up your nostrils. Airplane smell is equal parts comforting and off-putting. And it’s actually a little bit dangerous. But what is it exactly?
5VwPD TIL that Robert Hooke has been called “England’s Leonardo.” He discovered microorganisms and a law of elasticity; observed the rotation of planets; revolutionized city planning; and presaged theories of optics, gravity, and evolution.
oRJME TIL in Britain, the Victorian's Added Secret Messages to Their Postcards and Letters.
R74Z8 TIL that women’s shirt buttons were on the left because they were meant to be buttoned by others (maids for wealthy women back then).
5YmKD TIL that Lake Michigan and Lake Huron are hydrologically the same lake. They are joined by the 5 mile wide, 120ft deep Straits of Mackinac, and depending on conditions, water can flow in either direction, which keeps their water levels similar.