Waterfall produces perfect spheres of ice (video)

Freezing temperatures at a waterfall near Hope, British Columbia resulted in these astonishingly perfect ice spheres. How? Chunks of ice on the surface of the pool are continuously spun by by the water falling from above. Eventually, the ice is formed into a ball shape that continues to be smoothed as it spins. It's not unlike how a lathe is used to turn wood.

(Thanks, Chanté McCormick!)

(front page illustrative image: Dmytro Buianskyi/Shutterstock)