Developed the nickel-steel alloy Invar, a metal with near-zero thermal expansion, revolutionizing precision engineering and earning the Nobel Prize in Physics in 1920.
Charles Édouard Guillaume, a Swiss physicist, is renowned for his groundbreaking discovery of anomalies in nickel-steel alloys, which earned him the Nobel Prize in Physics in 1920. His work led to the development of Invar, Elinvar, and Platinite, alloys with unique properties that revolutionized the construction of precision instruments and contributed significantly to the advancement of modern physics.
Born on February 15, 1861, in Fleurier, Switzerland, Guillaume received his early education in Neuchâtel and later obtained a doctoral degree in Physics from ETH Zurich in 1883. He was married to A. M. Taufflieb in 1888, with whom he had three children.
Guillaume's prolific career was marked by his appointment as the head of the International Bureau of Weights and Measures. He also worked with Kristian Birkeland at the Observatoire de Paris, where he conducted several experiments with thermostatic measurements.
Guillaume's most significant contribution to science lies in his discovery of nickel-steel alloys, which he named Invar, Elinvar, and Platinite. These alloys exhibit unique properties, including near-zero thermal expansion, making them ideal for constructing precision instruments that require constant dimensions despite varying temperatures.
In his 1896 article, "La Température de l'Espace" (The Temperature of Space), Guillaume made a pioneering estimation of the radiation of the stars, making him a precursor to plasma cosmology, the study of the ionized universe.
Guillaume's outstanding contributions to physics earned him the Nobel Prize in Physics in 1920. He also delivered the fifth Guthrie Lecture at the Institute of Physics in London in 1919, titled "The Anomaly of the Nickel-Steels."
Charles Édouard Guillaume's work has had a profound impact on modern physics, enabling the development of precision instruments and contributing to our understanding of the universe. His discovery of nickel-steel alloys has far-reaching applications in various fields, including astronomy, engineering, and materials science.
Guillaume passed away on May 13, 1938, at the age of 77, leaving behind a legacy that continues to inspire scientists and researchers to this day.
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