National Geographic - Hear Otherworldly Sounds of Skating on Thin Ice

Check out this awesome YouTube video by National Geographic:
Hear Otherworldly Sounds of Skating on Thin Ice

Skating on thin ice is generally not recommended, but this Swedish mathematician has it planned to the millimeter! Fascinating sounds and sights as you watch the ice crack and flex under his skates!

Also read the article, How Skating on Thin Ice Creates Laser-Like Sounds.

New ice photo taken Nov. 28, 2010

Fascinating! Now, I want to make sure I get out to the pond when the new ice forms next winter. Check out the cool pond ice photos I took in Dec., 2010!

Air bubbles in newly formed ice  Dec, 18, 2010 

Big air bubble in new ice - Dec 18, 2010

Air bubble starburst in new ice.  Dec, 18, 2010

Cracks lined with bubbles in new ice.  Dec, 18, 2010

And, yes, the ice was super smooth!