Shadows of different size

Shadows of different size

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Credit: GIPhotoStock/SCIENCE PHOTO LIBRARY

Caption: Shadows of different size. When an object is placed father from a light source, its shadow on a screen is smaller compared to an equally-sized object placed closer to the light source. Two chess knights are use to demonstrate the phenomenon. Also note that the smaller shadow is more dense and has sharper edges compared to the larger shadow.

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Keywords: chess, chess figure, chess knight, chess piece, comparison, demonstration, education, educational, effect, experiment, illumination, light, optical, optics, penumbra, physics, scientific, shadow, size, source, umbra

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