90002_7925_04

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90002_7925_04

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1930s

B&W

Power lines. Record player, sewing machine, fan. vacuum, lightbulbs. Audio engineers operating equipment.

1960s

shots of water flowing out of a dam. Panning shot of electrical pole and…

1960s

Man calculates with slide rule. Metal refinery machines spit flame.…

1960s

Man with large magnet is pulled up the front of a barn, the magnet stuck.…

1960s

CU of job acceptance letter. Man in lab coat sits in a study, calculating…