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1950s: A professor shows his students how a solution of table salt and water can conduct electricity in 1952.

R

By Rick Ray

  • Stock footage ID: 26866420
Clip length: 00:55FPS: 29.97Aspect ratio: 16:9
HD$791920 × 1080MOV581.7 MB
SD$65852 × 480MOV47.6 MB
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