Geissler tube

1857 Geissler tube

The book of science

Tom Sharp

Heinrich Geißler electromagnetism

Geissler tube

Increasing vacuum

Various tubes

William Whewell coined the terms cathode and anode for Michael Faraday for his paper on electrolysis in 1834.

The Geissler tube led to the discovery of the electron and the development of electronic devices—computer, radar, radio, television.

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