What did Charles Édouard Guillaume's work focus on?
Astronomy
Anomalies in materials
Biology
Geology
Answer
Charles Édouard Guillaume's research centered on anomalies in materials, particularly alloys. He discovered that the expansion coefficient of nickel-steel alloys was exceptionally low, a phenomenon known as the Guillaume effect. This discovery led to the development of invar, an alloy with minimal thermal expansion, which found applications in precision instruments and clocks.
Unraveling the Genius: The Life and Legacy of Charles Édouard Guillaume
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