› added 10 months ago

97

TIL that the number of 100,000 km for the length of human blood vessels used some VERY generous assumptions, and that it is actually around 9,000 to 19,000 km.

Read more pmc.ncbi.nlm.nih.gov

via reddit.com

kOrN4 TIL Scientists haven’t excavated the tomb of China’s first emperor because they are not allowed to, and because it is (or was) surrounded by a “river of mercury”
R7maw TIL That Adidas is an abbreviation of it's owner's name, Adolf (adi) Dassler (das)
LkgY9 TIL that x-ray analysis is commonly applied to ancient paintings in order to reveal corrections, underdrawings and even figures the artist wanted to hide, such as a hidden man in Picassos "Blue Room".
9Y5GQ TIL the president and vice-president can't be from the same state.
4k6lJ Today I learned that the light from white LED streetlights is turning purple in many places.