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Edward Condon – Pioneer in Quantum Mechanics – SciHi Blog

Edward Condon – Pioneer in Quantum Mechanics – SciHi Blog

Tabea Tietz
On March 2, 1902, American nuclear physicist Edward Uhler Condon was born. Condon was a pioneer in quantum mechanics and a participant in the development of radar and nuclear weapons during World War II as part of the Manhattan Project. The Franck–Condon principle and the Slater–Condon rules are co-named after him. “I have lost a good deal of sleep trying to figure out how you could have talked this way about a…
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physics
Otto Frisch and the Idea of Nuclear Fission

Otto Frisch and the Idea of Nuclear Fission

Tabea Tietz
On October 1, 1904, Austrian-British physicist Otto Robert Frisch was born. With his aunt Lise Meitner,[4] Frisch described the division of neutron-bombarded uranium into lighter elements. With his collaborator Rudolf Peierls he designed the first theoretical mechanism for the detonation of an atomic bomb in 1940. “Scientists have one thing in common with children: curiosity. To be a good scientist you must have kept this trait of childhood, and perhaps it is not…
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physics
Alfred Nier – a Pioneer in Mass Spectroscopy

Alfred Nier – a Pioneer in Mass Spectroscopy

Tabea Tietz
On May 28, 1911, American physicist Alfred Otto Carl Nier was born. Nier pioneered the development of mass spectrometry. He was the first to use mass spectrometry to isolate uranium-235 which was used to demonstrate that 235U could undergo fission and developed the sector mass spectrometer configuration now known as Nier-Johnson geometry. “…You try to untangle all of these processes to get at the primordial ratio of the heliums in the cosmic…
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physics
John Wheeler and the Golden Age of General Relativity

John Wheeler and the Golden Age of General Relativity

Tabea Tietz
On July 9, 1911, American theoretical physicist John Archibald Wheeler was born. Wheeler worked with Niels Bohr in explaining the basic principles behind nuclear fission as well as with Albert Einstein, with whom he tried to achieve Einstein’s vision of a unified field theory. He is also known for popularizing the term black hole, and for coining the terms quantum foam, and wormhole. Background John Wheeler John Archibald Wheeler grew up in a Unitarian…
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history
How the Chernobyl Disaster Started

How the Chernobyl Disaster Started

Harald Sack
On Saturday 26 April 1986, at the No. 4 nuclear reactor in the Chernobyl Nuclear Power Plant, near the city of Pripyat in the north of the Ukrainian SSR, the Chernobyl nuclear disaster started. It is considered the worst nuclear disaster in history and is one of only two nuclear energy disasters rated at seven — the maximum severity — on the International Nuclear Event Scale, the other being the 2011 Fukushima…
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engineering
Experimental Breeder Reactor I – The World’s First Nuclear Power Plant

Experimental Breeder Reactor I – The World’s First Nuclear Power Plant

Tabea Tietz
On December 20, 1951, Experimental Breeder Reactor I (EBR-I) became the world’s first electricity-generating nuclear power plant when it produced sufficient electricity to illuminate four 200-watt light bulbs. From Manhattan Project to Atomic Energy Commission The reactor is located in the the state of Idaho between the Idaho Falls and Arco. The construction was designed by Walter Zinn and Enrico Fermi at the Argonne National Laboratory.[5] The famous Italian physicist Fermi became next…
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physics
Now I am become Death, the Destroyer of Worlds – The Trinity Test

Now I am become Death, the Destroyer of Worlds – The Trinity Test

Harald Sack
On July 16, 1945, the first detonation of a nuclear device with the code name Trinity took place in the Jornada del Muerto desert in New Mexico. Although nuclear chain reactions had been hypothesized already in 1933 and the first artificial self-sustaining nuclear chain reaction (Chicago Pile-1) had taken place in December 1942, the date of the Trinity test is usually considered to be the beginning of the Atomic Age. Los Alamos director…
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physics
Carl Friedrich von Weizsäcker – The Responsibility of Science in the Atomic Age

Carl Friedrich von Weizsäcker – The Responsibility of Science in the Atomic Age

Harald Sack
On June 28, 1912, German physicist at philosopher Carl Friedrich von Weizsäcker was born. Being a member of the team of physicists, who under Werner Heisenberg‘s lead performed nuclear research in Germany during World War 2, Weizsäcker later made important theoretical discoveries regarding energy production in stars from nuclear fusion processes. He also did influential theoretical work on planetary formation in the early Solar System. “It’s useful when we learn to wonder…
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history
The Three Mile Island Accident

The Three Mile Island Accident

Harald Sack
On March 28, 1979, a partial nuclear meltdown occurred in one of the two Three Mile Island nuclear reactors in Dauphin County, Pennsylvania. The so-called Three Mile Island Accident was the worst accident in U.S. commercial nuclear power plant history. Three Miles Downriver from Middletown, Pennsylvania Three Mile Island has got its name because it is located three miles downriver from Middletown, Pennsylvania. The plant was originally built by General Public Utilities…
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physics
The First Self-Sustained Nuclear Chain Reaction

The First Self-Sustained Nuclear Chain Reaction

Tabea Tietz
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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