Different Pies Stock Videos

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light and what it does - part 7 of 18. demonstrates, through a series of simple experiments, how light travels; how it is affected by different materials; what causes reflection and refraction; and how light is used in many everyday activities - different pies stock videos & royalty-free footage
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Light and What It Does - part 7 of 18. Demonstrates, through a series of simple experiments, how light travels; how it is affected by different materials; what causes reflection and refraction; and how light is used in many everyday activities
Archival, Child, Photography
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