Wednesday, July 5, 2017

fun

if all the blood vessels in human body were laid out they would have  a total length of about 6,000 miles that long enough to circle  the world tow and a half times.










at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

diving into underwater chess

 as if game chess weren't challenging enough imagine playing  at the  bottom  of  a swimming pool. some of  the  worlds top chess  playe...