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Curio: Plate Tectonics and Fingernails

What do your fingernails and the earth's plates have in common?

The continental landmasses of the planet sit on tectonic plates. These plates can be see in the above image from the National Oceanic and Atmospheric Administration. These plates move because heat from radioactivity causes the earth's interior to move very slowly.

It turns out that the normal movement of these plates is about 1-2 inches (or 2-5 centimeters) per year. This is the same rate at which your fingernails grow! Take a moment to consider that the next time you are enjoying a manicure or trimming your nails!

To learn more about plate tectonics visit This Dynamic Earth.

Earth day manicure design source.


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