Ernst Abbe

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Ernst Karl Abbe
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Ernst Karl Abbe

Ernst Karl Abbe (January 23, 1840 in EisenachJanuary 14, 1905 in Jena), was a German physicist.

Abbe is best known for his work in optics; however, during his association with Carl Zeiss' microscope works, in Jena, he introduced the eight-hour workday, in remembrance of the 14-hour workday of his own father. The eight-hour workday would not be widely emulated in the United States until its use in the next century by the Ford Motor Company 1914, although it was proclaimed in 1884.

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