Paris, France/parisF567
Previous | Home | NextThe electrometer was used to measure the final effect. On the screen was shown a spot of light; if it stayed in the middle, then the charges were balanced and a correct reading was indicated.
Paris, France/parisF567Previous | Home | NextThe electrometer was used to measure the final effect. On the screen was shown a spot of light; if it stayed in the middle, then the charges were balanced and a correct reading was indicated. |
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