The discovery of fission took place at a time of great turmoil. Two German physicists, and later verified by two Jewish refugee physicists, discovered it. Italian physicist Enrico Fermi later discovered the unique quality of fission that was induced by neutrons but also produced neutrons. This created the idea of ​​a self-sustaining chain reaction, and the large amount of energy found in a nucleus was now accessible on a large scale (section on nuclear weapons, paragraph 1). Nuclear weapons are classified into two types of weapons, which are nuclear fission and fission-induced reactions which trigger a fusion reaction. A fission-induced nuclear bomb is also called an atomic bomb, a fission-induced nuclear weapon is called a thermonuclear weapon, and a hydrogen bomb (Union of Concerned Scientists [UCSUSA], 2009, p. 1). Thermonuclear weapons are capable of creating larger explosions than fission weapons by using fission and fusion instead of deriving their energy from fission alone (UCSUSA, 2009, p. 2). In “The Physics of Nuclear Weapons,” the design of thermonuclear weapons is explained by two basic components, which are the “primary” and the “secondary” (“The Physics of Nuclear Weapons, p. 6). These two basic components are also called the Teller-Ulam design, which is a "two-stage bomb", the basic design of all thermonuclear weapons (Fusion Weapon Physics 2.0 section, paragraph 1). This report will examine the beginning and development of thermonuclear weapons. This was the first detonation of a thermonuclear weapon in 1952 (“Race for the Superbomb”, para. 1). Also the development from the first thermonuclear weapon to the present day "Boosted" (UCSUSA, 2009, p. 2) and "Neutron" thermonuclear bombs (section on nuclear weapons, paragraph 1...... middle of paper ... ...nt. This innovation also leads to the possibility of never fully understanding nuclear weapons. The second is to reduce the environmental burden, which will help make the sites habitable in the long term. design warheads that can be manufactured safely This ensures that the lives of scientists and other workers are not endangered during warhead production (p. 16-30). to accomplish different tasks such as destroying infrastructure, destroying or altering agriculture, releasing radiation and thermal energy at programmed pulses, and killing massive numbers of humans. This advanced engineering machine has led to. many advances in the exploitation of nuclear energy and in our understanding of radiation. It plays a vital role in modern society politically, environmentally and in our future..