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Refraction
The bending of light passing at an angle from one medium to another. The change of direction (deflection) of a light ray from a straight line as it passes obliquely from one medium (such as air) to another (such as glass or film) in which its velocity is different. Occurs in lenses and prisms.
The National Film and Sound Archive of Australia acknowledges Australia’s Aboriginal and Torres Strait Islander peoples as the Traditional Custodians of the land on which we work and live and gives respect to their Elders both past and present.