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4 Interesting Physical Demonstration Models, ...
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2 Chrome Acid Cells...
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Leybold X-Ray Tube, c. 1910...
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2 Electrostatic Induction Demonstration Model...
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10 Geißler Tubes, c. 1900...
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Large Experimental Electric Motor, 1871 onwar...
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Electrophysical Demonstration Model, c. 1890...
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French Demonstration Model by Ducretet, c. 18...
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Electric Motor with Rotating Geißler Tubes, c...
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"Geißler Tube" Demonstration Model...
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7 Electron Tubes...
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Large Geißler Tube, c. 1900...
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Static Charge Demonstration Model...
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English Brass Plate Sundial, 19th Century...
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Large Induction Coil According to Ruhmkorff, ...
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Large Wimshurst's Electrostatic Machine, c. 1...
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Abel's Petroleum Tester, c. 1885...
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Large Nairne-Type Electrostatic Generator, c....
