Portal:Nuclear technology

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The Quebec Agreement was a secret agreement between the United Kingdom and the United States outlining the terms for the coordinated development of the science and engineering related to nuclear energy and specifically nuclear weapons. It was signed by Winston Churchill and Franklin D. Roosevelt on 19 August 1943, during World War II, at the First Quebec Conference in Quebec City, Quebec, Canada.

The Quebec Agreement stipulated that the US and UK would pool their resources to develop nuclear weapons, and that neither country would use them against the other, or against other countries without mutual consent, or pass information about them to other countries. It also gave the United States a veto over post-war British commercial or industrial uses of nuclear energy. The agreement merged the British Tube Alloys project with the American Manhattan Project, and created the Combined Policy Committee to control the joint project. Although Canada was not a signatory, the Agreement provided for a Canadian representative on the Combined Policy Committee in view of Canada's contribution to the effort.

British scientists performed important work as part of the British contribution to the Manhattan Project, and in July 1945 British permission required by the agreement was given for the use of nuclear weapons against Japan. The September 1944 Hyde Park Aide-Mémoire extended Anglo-American co-operation into the post-war period, but after the war ended, American enthusiasm for the alliance with Britain waned. The McMahon Act (1946) ended technical co-operation through its control of "restricted data". On 7 January 1948, the Quebec Agreement was superseded by a modus vivendi, an agreement which allowed for limited sharing of technical information between the United States, Britain and Canada. (Full article...)

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Credit: Ed Westcott
6994-1 DOE photo Ed Westcott 6-9-1951 Oak Ridge Tennessee

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Marie Curie was one of the most significant researchers of ionizing radiation and its effects.
Marie Curie was one of the most significant researchers of ionizing radiation and its effects.
Maria Salomea Skłodowska-Curie[a] (Polish: [ˈmarja salɔˈmɛa skwɔˈdɔfska kʲiˈri] ; née Skłodowska; 7 November 1867 – 4 July 1934), known simply as Marie Curie (/ˈkjʊəri/ KURE-ee, French: [maʁi kyʁi]), was a Polish and naturalised-French physicist and chemist who conducted pioneering research on radioactivity. She was the first woman to win a Nobel Prize, the first person to win a Nobel Prize twice, and the only person to win a Nobel Prize in two scientific fields. Her husband, Pierre Curie, was a co-winner of her first Nobel Prize, making them the first-ever married couple to win the Nobel Prize and launching the Curie family legacy of five Nobel Prizes. She was, in 1906, the first woman to become a professor at the University of Paris.

She was born in Warsaw, in what was then the Kingdom of Poland, part of the Russian Empire. She studied at Warsaw's clandestine Flying University and began her practical scientific training in Warsaw. In 1891, aged 24, she followed her elder sister Bronisława to study in Paris, where she earned her higher degrees and conducted her subsequent scientific work. In 1895 she married the French physicist Pierre Curie, and she shared the 1903 Nobel Prize in Physics with him and with the physicist Henri Becquerel for their pioneering work developing the theory of "radioactivity"—a term she coined. In 1906 Pierre Curie died in a Paris street accident. Marie won the 1911 Nobel Prize in Chemistry for her discovery of the elements polonium and radium, using techniques she invented for isolating radioactive isotopes. Under her direction, the world's first studies were conducted into the treatment of neoplasms by the use of radioactive isotopes. She founded the Curie Institute in Paris in 1920, and the Curie Institute in Warsaw in 1932; both remain major medical research centres. During World War I she developed mobile radiography units to provide X-ray services to field hospitals. (Full article...)


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22 March 2024 – Russian invasion of Ukraine
The Dnieper Hydroelectric Station in Zaporizhzhia is hit by a missile causing extensive damage and a large fire. A trolleybus initially reported as carrying civilians was destroyed in the attack, later confirmed to have been empty apart from the driver who was killed. Shelling also damages one of the two power lines connected to the Russian-occupied Zaporizhzhia Nuclear Power Plant. (The Guardian) (The Kyiv Independent)
14 March 2024 – Russian invasion of Ukraine
Zaporizhzhia Nuclear Power Plant crisis
Russian-installed officials at the Zaporizhzhia Nuclear Power Plant in Enerhodar, Ukraine, say that shelling has hit critical infrastructure at the plant and that "such attacks are unacceptable". (Reuters)
28 February 2024 –
China urges the world's largest nuclear states to negotiate a "no first use" treaty. China and India are currently the only two nuclear powers to formally maintain a no first use policy. (Reuters)

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