""A kugel ball is a sculpture consisting of a large granite ball supported by a very thin film of water. Water flows beneath a very heavy, perfectly spherical rock from a spherical concave base with exactly the same curvature. A kugel ball can weigh thousands of pounds[ 2000 ], but because the thin film of water lubricates it, the ball spins."" http://en.wikipedia.org/wiki/Kugel_ball
""The world is full of obvious things which nobody by any chance ever observes…""
— Arthur Conan Doyle
“The Hound of the Baskervilles”
""Mathematics...
So cool... the shot and the kugel ball! Thanks for sharing that bit of knowledge... which is just one more thing I love about 365... learning about all kinds of unusual things. :)