Search results
Results from the WOW.Com Content Network
1913 Niels Bohr presents his quantum model of the atom [3] 1913 Robert Millikan measures the fundamental unit of electric charge; 1913 William Henry Bragg and William Lawrence Bragg work out the Bragg condition for strong X-ray reflection; 1914 Ernest Rutherford suggests that the positively charged atomic nucleus contains protons [4]
The current theoretical model of the atom involves a dense nucleus surrounded by a probabilistic "cloud" of electrons. Atomic theory is the scientific theory that matter is composed of particles called atoms. The definition of the word "atom" has changed over the years in response to scientific discoveries.
This is a timeline of subatomic particle discoveries, including all particles thus far discovered which appear to be elementary (that is, indivisible) given the best available evidence. It also includes the discovery of composite particles and antiparticles that were of particular historical importance.
Models of the atomic nucleus: with interactive software. Vol. 1. Birkhäuser. ISBN 978-3-540-28569-4. Davies, Paul (1992). The new physics. Cambridge University Press. ISBN 978-0-521-43831-5. Mitra, Asoke Nath (2009). India in the world of physics: then and now. History of science, philosophy, and culture in Indian civilization: Theories of ...
The world's first commercial nuclear power station, Calder Hall at Windscale, England was connected to the national power grid on 27 August 1956. In common with a number of other generation I reactors , the plant had the dual purpose of producing electricity and plutonium-239 , the latter for the nascent nuclear weapons program in Britain . [ 26 ]
Inspired by the research of Rutherford, Sir William Ramsay, and Frederick Soddy, the novel predicts the development of atomic weapons, and features a "carolinum"-based hand grenade that does not extinguish once detonated. [4] 1920 – Rutherford postulates the existence of a neutral particle in the atomic nucleus at a Bakerian Lecture in London ...
Nuclear Age (a.k.a. Atomic Era) (1945/1950–present) [2] Space Age ... List of timelines around the world. Logarithmic timeline shows all history on one page in ten ...
This timeline lists significant discoveries in physics and the laws of nature, including experimental discoveries, theoretical proposals that were confirmed experimentally, and theories that have significantly influenced current thinking in modern physics. Such discoveries are often a multi-step, multi-person process.