Sunrise Mountain Lake Ripple
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Ripple in still water
In fancy science talk, ripples are known as capillary waves, and they're just one of many focuses in the expansive field of fluid dynamics. They're a delicate thing: If the wavelength of a ripple gets too big, it begins seeing substantial effects from gravity, disturbing the ripple's symmetry. Even undisturbed, a ripple is never really a perfect circle—as we see in this shot of Plansee, a crystal-clear alpine lake in Austria, where short, subtle waves from a gentle wind give our ripple a slightly shuddering shape.
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