Light moves very fast. A man named Foucault tested it. He used a spinning mirror. He found light moves slower in water. It moves faster in air. This helps us learn about light. Do you like to learn about light?
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🖼️ Images & Media (4)
Michelson's illustration of the Foucault...
Foucault's determination of relative...
Speed of light calculation using...
Michelson's 1879 Refinement of Foucault.png
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Content adapted from Wikipedia
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Readability: FK 11.4
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Vital Level 5