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Title: A Michelson interferometer.
Caption: Diagram depicting a Michelson interferometer, used for measuring the velocity of light. Invented by Albert A. Michelson (1852-1931) an American physicist and noble prize in physics winner. Dated 20th Century.
Credit: Album / Universal Images Group / Universal History Archive \ UIG
Image size: 5035 × 4165 px | 60.0 MB
Print size: 42.6 × 35.3 cm | 1982.3 × 1639.8 in (300 dpi)