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Senses: Sight (2x22)

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Main Concept: In order for us to see, the eye must convert light energy to electrical energy, which is interpreted by the brain as an image. Robin learns that sight is the dominant sense in some animals. She visits the U. S. Coast Guard in San Francisco and finds how pigeons, with their acute eyesight and color vision, are used to spot survivors at sea. Miguel visits the Computer Graphics Lab in New York City and learns how forms and colors of video images are manipulated electronically to produce pictures. BLOODHOUND GANG: "The Case of the Frozen Blob, Part Two."