Science Source General Science

EN_90286235_0661

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caption

A simple demonstration of light refraction. Light travels at different speeds in different optical mediums, such as water and air. When the light from the pencil exits the water, its angle of incidence with the water is increased. Since the brain assumes that light travels in straight lines, this leads it to believe that the pencil, when in the water, is in a different place from its true position.

headline Science Source General Science

created date 2010-02-13

credit EAST NEWS

source Science Source

byline Southern Illinois University

original transmission reference 7t1312

weight 1,1MB

size 19cm x 29cm by 300dpi

keywords - Show

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