Pretty cool. Might be in Russian, my phone translated it. The video plays after the game ad.
http://videoboom.cc/eksperiment-s-gazom-na-ozere/Translation:
When you look at stilled the water under the ice of the winter lake, inevitably come to mind thoughts of grandeur and beauty of nature. But the association with flames and explosions, I bet there is no one else. However, after a convincing demonstration of this elderly man, this situation somewhat shaken.
The white-haired patriarch came out on the ice with a knife and a box of matches. Under the guise of the wind, he found on the lake a couple of whitish spots and became a stubborn one of them hollow blade. Then the man brought it to receive the opening match.
The result of this scientist works at the age became a real torch. It turns out the winter cold beauty of the world can in just a few seconds turn into a raging fire!
Those who still remember school stuff, surely understood that the man set fire to natural methane. Gas resulting in the decomposition of organic matter somewhere on the bottom of the lake. Old naturalist spent a good demonstration, showing that ice and fire is actually much closer to each other than it seems.
Whatever it was, the experiment was spectacular. It is a pity that many of us in the school did not show anything like that in practice. By the way, mind something else - a man experiences after each carefully collected from the ice used matches. And no garbage!
