Gerhard Carl Schmidt
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Gerhard Carl Schmidt (5 July 1865 – 16 October 1949) was a German chemist.


Life

Schmidt was born in
London London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary dow ...
to German parents. He studied chemistry and in 1890 received his PhD for work with Georg Wilhelm August Kahlbaum. In 1898, two months before
Marie Curie Marie Salomea Skłodowska–Curie ( , , ; born Maria Salomea Skłodowska, ; 7 November 1867 – 4 July 1934) was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity. She was the first ...
, Schmidt discovered that
thorium Thorium is a weakly radioactive metallic chemical element with the symbol Th and atomic number 90. Thorium is silvery and tarnishes black when it is exposed to air, forming thorium dioxide; it is moderately soft and malleable and has a high ...
is
radioactive Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is consi ...
. Schmidt died of a stroke in
Münster Münster (; nds, Mönster) is an independent city (''Kreisfreie Stadt'') in North Rhine-Westphalia, Germany. It is in the northern part of the state and is considered to be the cultural centre of the Westphalia region. It is also a state di ...
16 October 1949.


See also

*
List of multiple discoveries Historians and sociologists have remarked upon the occurrence, in science, of " multiple independent discovery". Robert K. Merton defined such "multiples" as instances in which similar discoveries are made by scientists working independently of ea ...


References


External links


''Schmidt, Gerhard, Carl, Nathaniel: Complete Dictionary of Scientific Biography. Retrieved September 03, 2019 from Encyclopedia.com''
1865 births 1949 deaths 19th-century German chemists 20th-century German chemists {{Germany-chemist-stub