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Thomson, J. J. (Joseph John), Sir, 1856-1940.

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View Resource The Discovery of the Electron

To celebrate J.J. Thomson's discovery of the electron in 1897, the American Institute of Physics (discussed in the February 7, 1997 Scout Report) offers an online centennial exhibit. The AIP site concentrates more on the discovery process itself, tracing it back to the 1850s, recounting the 1897 experiments, the response to them, and their ultimate legacy.

https://history.aip.org/history/exhibits/electron/