Search Results
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Medico-galvanic Battery
- 1870 – 1900
Diagram depicting a medico-galvanic battery, a type of portable shock-producing electrotherapeutic device commonly in use between 1870 and 1920. Such devices provided both direct and alternating current and were thought…
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Galvanometer
- 1870 – 1900
Illustration of a galvanometer, a device used to detect and measure small amounts of electrical current through the use of a magnetic needle or a coil in a magnetic field.
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Voltaic Pile
- 1870 – 1900
Illustration depicting a voltaic pile, the first electric battery invented by Alessandro Volta in 1800.
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37 items
The Electro Magnetic Telegraph: with an Historical Account of its Rise, Progress, and Present Condition
- Also, practical suggestions in regard to insulation, and protection from the effects of lightning. Together with an appendix, containing several important telegraphic decisions and laws
- 1853
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386 items
Wonders of electricity and the elements, being a popular account of modern electrical and magnetic discoveries, magnetism and electric machines, the electric telegraph and the electric light, and the metal bases, salt, and acids
- 1870 – 1900
Educational volume covering a variety of topics related to electricity and the chemical elements in two parts. The first half of the volume is devoted to electrical and magnetic discoveries and modern electric machines,…
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