Henry and Hora's modern electricity; a practical working encyclopedia (1915)
Henry, James. [from old catalog], Hora, Karel Jan, 1881- [from old catalog] joint author · Chicago, Laird & Lee, inc. · leaf 26
d with the earth by means of a chain. The earliest form of this machine was designed by Otto vonGuericke of Magdeburg, who used a sulphur ball instead of theglass cylinder, and his ownhand instead of the cush-ion. Sir Isaac Newton,Von Bose, Winkler of Leip-zig, Gordon of Erfurt, Dela Fond, Planta,… … .SECTOR -COMB Fig. 3. 26 MODERN ELECTRICITY so-called Holtz Machine, see fig. 3), will produce a steady flowof electricity. Such a machine generates a small quantityof electricity, but the pressure is very great. Hydraulic analogy 18. The flow of electricity may be explained by comparingthe…
Electrical engineering
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