948 reactions · 128 shares | Experience the soul of the ocean in a never-before-seen look at how life underwater co-exists. | Nature | PBS | Facebook

‘TALLBOY’ BLAST: Drone footage shows a British World War II bomb discovered underwater in Poland in 2019 exploding as crews tried to neutralize the weapon; 750 nearby residents had been evacuated and no injuries were reported. https://abcn.ws/3dopcvj | ABC World News Tonight with David Muir

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