Hans Geiger

Ernest Rutherford Discovers the Nucleus

Ernest Rutherford Discovers the Nucleus

On December 20, 1910, New Zealand born physicist Ernest Rutherford made his seminal gold foil experiment which led to first insight about the nature of the inner structure of the atom and to the postulation of Rutherford‘s concept of the “nucleus“, his greatest contribution to physics. Most interestingly, Rutherford made his greatest discovery after receiving the Nobel Prize in chemistry in 1908. “When we have found how the nucleus of atoms is…
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James Chadwick and the Discovery of the Neutron

James Chadwick and the Discovery of the Neutron

On February 27, 1932, English physicist and Nobel Laureate Sir James Chadwick published an article in the scientific journal ‘Nature‘ about the discovery of the neutron, a previously unknown particle in the atomic nucleus. Youth and Education Chadwick was born in Bollington, near Manchester. His parents were John Joseph Chadwick and Mary Anne Knowles. He first attended the Bollington Cross C of E Primary School and later the Central Grammar School for Boys…
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Willard Frank Libby and the Radiocarbon Dating

Willard Frank Libby and the Radiocarbon Dating

On December 17, 1908, American physical chemist Willard Frank Libby was born. Libby is best known for his role in the 1949 development of radiocarbon dating, a process which revolutionized archaeology and palaeontology. For his contributions to the team that developed this process, Libby was awarded the Nobel Prize in Chemistry in 1960. Early Years Willard Frank Libby was born among two siblings in Grand Valley, Colorado, the son of farmers Ora…
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Hans Geiger and the Geiger Counter

Hans Geiger and the Geiger Counter

Hans Geiger(1882 – 1945)Image: Wikimedia User GFHund On September 30, 1882, German physicist Johannes Wilhelm Geiger was born. He is best known as the co-inventor of the Geiger counter and for the Geiger–Marsden experiment which discovered the atomic nucleus. Hans Geiger started his physical and mathematical studies at the University of Erlangen, where he finished his final examinations and his doctorate on measurement of radiation. He moved to Manchester, where he became…
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