In 1803, he speculated that all atoms of a given element are identical in size and mass. Dalton; John Dalton reasoned that elements were composed of smaller atoms. Who discovered the electron? Although J.J. Thomson is credited with the discovery of the electron on the basis of his ...
Clairvoyantly it was seen to consist of six small bodies, contained in an egg-like form. According to Leadbeater/Besant, it rotated with great rapidity on its own axis, vibrating at the same time, and the internal bodies performed similar gyrations. “The whole atom spins and quivers, and...
In the wake of Operation Ivy, scientists raced to create a practical, air-droppable dry fuel thermonuclear weapon. This effort produced an experimental, 10,000 kilogram device code-named “Shrimp”, whose 1.3 metre diameter, 4.5-metre long cylindrical case contained a 61 kiloton fission trigger ...
Whatever his thought process, Mendeleev ultimately arranged the elements according to both atomic weight and valence electrons. Not only did he leave space for elements not yet discovered, but he predicted the properties of five of these elements and their compounds. In March 1869, he presented th...
Meitner, Otto Hahn and Otto Robert Frisch led the small group of scientists who first discovered nuclear fission of uranium when it absorbed an extra neutron; the results were published in early 1939. Meitner, Hahn and Frisch understood that the fission process, which splits the atomic nucleus ...
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