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Image
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Source
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Observations
from the source
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Gallenkamp (1930s)
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Sphere
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Gallenkamp (1930s)
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Cone
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Gallenkamp (1930s)
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Cylinder
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Gallenkamp (1930s)
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Conductor, cylindrical
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Gallenkamp (1930s)
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Spheres
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Gallenkamp (1930s)
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Distribution apparatus
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Gallenkamp (1930s)
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Induction apparatus
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Gallenkamp (1930s)
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Faraday butterfly net
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Gallenkamp (1930s)
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Biot’s apparatus
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