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Andrew Acomb
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"Crater Lake can not be overlooked. When Kodak first published photos of the lake, the company issued a formal apology to its customers. Kodak could only assume that the unbelievable blue in the pictures had resulted from incorrect processing. Also, shortly after the Crater Lake became a United States National Park, one visitor could not believe that the color of the lake of natural. She went so far as to write her congressman that she though dye was being adding to the lake. "The dramatic color of Crater Lake is the product of its great depth, the purity and clarity of its water, and the way light interacts with water. Water molecules absorb the longer wavelengths of light better (reds, oranges, yellows, and greens). Shorter wavelengths (blues) are more easily scattered than absorbed. In the deep lake, some of the scattered blue light is redirected back up to the surface where we can see it. Around the edges where the water is less deep, some of the unabsorbed green light is reflected..." - Andrew Acomb
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