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10K views · 251 reactions | Ever seen an underwater explosion? The pulsing is what’s called a cavitation cycle. The expanding gases push as far as they can until the water pressure overcomes the outward force of the gas. Then the bubble collapses to a point where the gas exerts more force than the water so the bubble expands again. This cycle perpetuates until the gases cool to a temperature where they no longer expand. | Now Science News | Facebook