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Are you a wonderful person? Have you ever wondered... Why the sky is blue? How 3D movies work? What a mirage is? Why rainbows appear? Why the coyote never catches the roadrunner? Why there is air? What lightning is?
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Document Date: 2012-02-19 18:10:17
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Are you a wonderful person? Have you ever wondered... Why the sky is blue? How 3D movies work? What a mirage is? Why rainbows appear? Why the coyote never catches the roadrunner? Why there is air? What lightning is?