Image: Holtz influence machine
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Description: A Holtz influence machine (an electrostatic generator). Legend: R : Pulley to rotate the non-fixed disk A, A' : Holes in the fixed glass disk S, S' : Paper coverings of A, A' s, s' : Points from S, S' towards the centers of A, A' K, K' : Adjustable brass bars
Title: Holtz influence machine
Credit: https://runeberg.org/nfbg/0119.html
Author: Nordisk Familjebok
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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