Spherical Rayleigh-Taylor Instabilities,to be exact. That’s what happens when two fluids of different densities collide under the force of gravity. The sample can be seen in everything from the mushroom clouds of nuclear explosions to cosmic supernovae. But as science photographer Linden Gledhill demonstrates, you can also recreate the fluid dynamics phenomenon at home, and using nothing but ink,water, and a reliable camera.
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Source: gawker.com