› added 4 years ago

90

TIL That The Furniture Industry On Avg. Has A Markup Between 200% - 400%

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4kvW6 TIL about Chromostereopsis: the effect that particular color shades can have on your depth perception
xVLPw TIL high Facebook usage is directly linked to a higher depression rate and an overall decrease in life satisfaction.
9wJ5X TIL darker skin people need more sunlight to make vitamin D. One experiment where a light skinned person was in sunlight for 8 hours saw their vitamin D concentration go up by 50x while a dark skinned person saw no change. They needed 5-10 times the sunlight length and then only saw a 30x change.
JYZYB TIL there is a Post Office at the bottom of the Grand Canyon.
MeggK TIL of the Benjamin Franklin effect that causes people to like someone more after doing them a favor. When Franklin asked his rival for a rare book and returned it with a note of thanks, Franklin’s rival spoke to him with great civility and offered help, leading the two men to become good friends.