Otto Hahn

The First Self-Sustained Nuclear Chain Reaction

The First Self-Sustained Nuclear Chain Reaction

On December 2, 1942, during the Manhattan Project, a team led by Italian born physicist Enrico Fermi initiated the first self-sustaining nuclear chain reaction in the Chicago Pile-1 (CP-1), the world‘s first human-made nuclear reactor, and initiated the so-called atomic age. CP-1 was built on a rackets court, under the abandoned west stands of the original Alonzo Stagg Field stadium, at the University of Chicago. Nuclear Chain Reaction and the Atomic Bomb…
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Lise Meitner – The Misjudged Genius

Lise Meitner – The Misjudged Genius

On October 27, 1968, Austrian-Swedish physicist Lise Meitner passed away. She is known today for her passionate and extraordinary work on radioactivity and nuclear physics along with her colleague Otto Hahn,[1] who was honored with the Nobel Prize while Meitner stayed unrecognized. Family Background and Early Life Lise Meitner was born on November 7, 1878 in Vienna Leopoldstadt (2nd district of Vienna), Austria. She was the third daughter of the Jewish lawyer Philipp Meitner and…
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Max Delbrück – Co-founder of Modern Molecular Biology and Genetics

Max Delbrück – Co-founder of Modern Molecular Biology and Genetics

On September 4, 1906, German biophysicist and Nobel laureate Max Delbrück was born in Berlin. His best known achievement for that he won the Nobel prize was the discovy that bacteria become resistant to viruses (phages) as a result of genetic mutations. “If you’re too sloppy, then you never get reproducible results, and then you never can draw any conclusions; but if you are just a little sloppy, then when you see…
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Otto Hahn – the Father of Nuclear Chemistry

Otto Hahn – the Father of Nuclear Chemistry

On March 8, 1879, German chemist and pioneer in the fields of radioactivity and radiochemistry Otto Hahn was born. He was awarded the Nobel Prize in Chemistry in 1944 for the discovery and the radiochemical proof of nuclear fission at the exclusion of his colleague Lise Meitner. He is referred to as the father of nuclear chemistry. Otto Hahn studied chemistry and mineralogy at the University of Marburg. During his third and fourth semester,…
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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. James Chadwick was born and raised in Bollington, England and later studied at Manchester and Cambridge University. Just before the start of World War I, Chadwick moved to Berlin, studying at the city’s Technical University under Ernest Rutherford and Hans…
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Leo Szilard and the Atomic Bomb

Leo Szilard and the Atomic Bomb

On February 11, 1898, Hungarian-American physicist and inventor Leo Szilárd was born. He conceived the nuclear chain reaction in 1933, patented the idea of a nuclear reactor with Enrico Fermi, and in late 1939 together with Albert Einstein wrote the letter that resulted in the Manhattan Project that built the atomic bomb. He also conceived the electron microscope, the linear accelerator, and also the cyclotron. Szilárd was born in Budapest, Hungary, as son of Louis Spitz, a…
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