carbon-arc

Updated: May 20, 2025

Edison began his investigations in this line of invention in September of 1878, and in December of the following year gave to the public his first formal statement of results. After many experiments with platinum, he abandoned that material in favor of the carbon-arc in vacuo. The latter is, indeed, the essential feature of the Edison light.

- Notable Events of the Nineteenth Century: Great Deeds of Men and Nations and the Progress of the World