› added 4 years ago

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TIL: carbon monoxide plays critical roles in the body under physiological conditions, acting as a vasodilator, neurotransmitter, and regulator of circadian rhythm among other important functions.

Read more ncbi.nlm.nih.gov

via reddit.com

ep0b6 TIL Into the 19th century Paris was characterized by tight winding streets and small thin buildings that Voltaire said were suitable for Goths. Under Napoleon III the city had massive renovations that widened the streets and created large apartment buildings.
0Zey TIL that when male fruit flies lose a fight, they get so depressed that they stop trying to fight other flies, even if they know they can win.
9Aa6 TIL Amtrak will attach privately-owned rail cars to their trains so you can travel between points in North America.
VMwnZ TIL that Michel "Marshal" Ney 'refused to wear a blindfold and was allowed the right to give the order to fire' at his own Execution.
4kBRw TIL it was illegal to dry clothes on a clothesline in most states in USA, until 2013 when a Right To Dry bill was passed in several states.