It is handy to think of energy as all being the same thing but operating at different wave lengths. So the kinetic energy of ocean waves blends into the also kinetic energy of sound waves, which blends into things like infrared heat waves and microwaves and light waves.
But that would be wrong. See: Light waves, clarified.
More signs point towards a Saudi Arabian eruption ... or not? UPDATED ... jeeesh. these geologists. it's like nothing can be written in stone...

Learn more about Charles Darwin and his work.
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