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A filled classroom pays attention to a chemistry teacher at an industrial plant in Aruba in 1972, writing equations on a blackboard and explaining them. (1970s)

R

By Rick Ray

  • Stock footage ID: 18534521
Video clip length: 02:18FPS: 29.97Aspect ratio: 3:2Editorial use only. Learn more
SD$65720 × 480MOV162.4 MB

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