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American physicist Arthur L. Schawlow in 1967, demonstrates and explains to U.S. reporter Walter Cronkite how a laser functions in theory. (1960s)


By Rick Ray

  • Stock footage ID: 18533585
Video clip length: 02:11FPS: 29.97Aspect ratio: 3:2Editorial use only. Learn more
SD$65720 × 480MOV112.1 MB

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