Underwater explosions using dry ice in slow motion

What do you get when you throw dry ice bombs into a swimming pool? YouTube's TheBackyardScientist is about to find out.

First, he fills a plastic water bottle with chunks of dry ice he says liquid nitrogen works just as well if you have some lying around. And, who doesn't?

Then he attaches a weight to the water bottle, puts on the lid and quickly throws it into the pool.

The result?

A cool, underwater explosion. But, as he demonstrates with these water balloons, you probably don't want to be in the pool when one goes off!

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