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Hace 12 horas · Comcast Corporation (simply known as Comcast, and formerly known as American Cable Systems and Comcast Holdings), incorporated and headquartered in Philadelphia, is an American multinational telecommunications and media conglomerate. The corporation is the second-largest broadcasting and cable television company in the world by revenue (behind AT&T).
Hace 12 horas · Prismatic color distortion shown with a camera set for near-sighted focus, and using –9.5 diopter eyeglasses to correct the camera's myopia (left). Close-up of color shifting through corner of eyeglasses. The light and dark borders visible between color swatches do not exist (right).