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This timeline of nuclear weapons development is a chronological catalog of the evolution of nuclear weapons rooting from the development of the science surrounding nuclear fission and nuclear fusion. In addition to the scientific advancements, this timeline also includes several political events relating to the development of nuclear weapons.
1913 Henry Moseley shows that nuclear charge is the real basis for numbering the elements; 1913 Johannes Stark demonstrates that strong electric fields will split the Balmer spectral line series of hydrogen; 1913 Niels Bohr presents his quantum model of the atom [3] 1913 Robert Millikan measures the fundamental unit of electric charge
This timeline of nuclear power is an incomplete chronological summary of significant events in the study and use of nuclear power. This is primarily limited to sustained fission and decay processes, and does not include detailed timelines of nuclear weapons development or fusion experiments .
On May 9, the American nuclear test Greenhouse George, the first of a boosted fission weapon, yields 255 kilotons from an enriched uranium core and deuterium-tritium gas. This is the artificial thermonuclear fusion, and the first weaponization of fusion energy. [15]
China developed its first nuclear weapon in 1964; its nuclear stockpile increased until the early 1980s, when it stabilized at between 200 and 260. [1] India became a nuclear power in 1974, while Pakistan developed its first nuclear weapon in the 1980s. [1] [21] India and Pakistan currently have around one hundred nuclear weapons each. [19]
In nuclear fission events the nuclei may break into any combination of lighter nuclei, but the most common event is not fission to equal mass nuclei of about mass 120; the most common event (depending on isotope and process) is a slightly unequal fission in which one daughter nucleus has a mass of about 90 to 100 daltons and the other the ...
The first light bulbs ever lit by electricity generated by nuclear power at EBR-1 at Argonne National Laboratory-West, 20 December 1951. [12] As the first liquid metal cooled reactor, it demonstrated Fermi's breeder reactor principle to maximize the energy obtainable from natural uranium, which at that time was considered scarce.
1932: Ernest Walton and John Cockcroft: Nuclear fission by proton bombardment; 1934: Enrico Fermi: Nuclear fission by neutron irradiation; 1934: Clive McCay: Calorie restriction extends the maximum lifespan of another species; 1938: Otto Hahn, Lise Meitner and Fritz Strassmann: Nuclear fission of heavy nuclei; 1938: Isidor Rabi: Nuclear ...