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Date: 2012-02-19 18:10:17 | 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?Add to Reading ListSource URL: phyz.orgDownload Document from Source WebsiteFile Size: 40,28 KBShare Document on Facebook |