TIL the idea that if you connect all of your blood vessels up end to end that it would stretch (100,000km/60,000mi) or 2 and a half times around the world is wrong, it's actually only 9,000km to 19,000km or 5,600mi to 11,800mi. So not even 1 time around the world.

https://www.youtube.com/watch?v=bgo7rm5Maqg
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1gf9dpj/til_the_idea_that_if_you_connect_all_of_your/