Underwater explosions using Dry Ice, and Liquid Nitrogen, and captured in high definition slow motion. Hey guys, Backyard Scientist here. I this video I throw water bottles filled with dry ice, and liquid nitrogen into my pool. This is seriously cool. The resulting explosions are earth-shaking powerful. I was curious to see what would happen to a human if they were underwater when this happened, so I fixed a couple balloons to a weight underwater. The explosion compresses the gas inside the