Science & technology

Invention of electrical generator

1873

The electrical generator converts mechanical energy into electricity, and it rests on the discovery of electromagnetic induction by Michael Faraday in 1831. Faraday's disc was the first simple generator, and the French instrument maker Hippolyte Pixii built a hand-cranked machine a year later. The practical dynamo came in the 1860s, when Werner von Siemens and others introduced self-exciting machines, and the Belgian Zenobe Gramme built a widely used ring dynamo in the early 1870s. In 1873 a Gramme machine at the Vienna world exhibition was shown running as an electric motor when connected to another, demonstrating that these machines are reversible. Generators driven by steam and water power then supplied the first electric lighting and power networks, from Thomas Edison's Pearl Street station of 1882 onwards.

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This moment belongs to the Industrial era (1760 CE to 1914 CE), steam, factories and revolutions. You can also browse everything in the 19th century.