Who developed the first thermonuclear weapon?
Thermonuclear weapon
The first full-scale thermonuclear test was carried out by the United States in 1952; the concept has since been employed by most of the world's nuclear powers in the design of their weapons. The design of all modern thermonuclear weapons in the United States is known as the "Teller–Ulam configuration" for its two chief contributors, Edward Teller and Stanislaw Ulam, who developed it in 1951 for the United States, with certain concepts developed with the contribution of physicist John von Neumann. Similar devices were developed by the Soviet Union, United Kingdom, France, and China.
Vitaly Aleksandrovich
Vitaliy Aleksandrovich Aleksandrovich (also Vitali)(Russian:Виталий Александрович Александрович) (14 February 1904 - 12 July 1959) was a Ukrainian Soviet physical chemist and chemical engineer who also became part of the Soviet programme that developed nuclear weapons from the late 1940s. He was a co-author of the design report of the first Soviet two-stage thermonuclear bomb, the RDS-37.