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Nuclear weapon designs are physical, chemical, and engineering arrangements that cause the ..... The mechanism of the high explosive lens (diagram item #6) is not shown in the Swedish drawing, but a standard lens made of fast and slow ...


Einstein and several other scientists told Roosevelt of efforts in Nazi Germany to purify U-235 with which might in turn be used to build an atomic bomb.


Jun 5, 2014 ... The U.S. developed two types of atomic bombs during the Second World War.


In particular, the Fusion Boosted Fission Weapon, the Fission-Free Neutron ... This is also the primary device in a fission-fusion-fission thermonuclear device.


Sep 30, 2016 ... Diagram of a nuclear warhead. The explosions used in thermonuclear weapons are often described as a primary (the chemical and fission ...


Nov 5, 2015 ... This refers to the fact that, under a certain reading of the law, information on the design and function of nuclear weapons is considered stolen ...


U-235 is the valuable isotope from a nuclear weapons or nuclear power point of ... next diagram (source: Wikimedia Commons), when a U-235 atom absorbs a ...


How are nuclear weapons different from conventional weapons? The humanitarian, economic, and environmental consequences of nuclear war are ...


Figure 1 – A schematic diagram of an implosion bomb similar to the one designed by .... Figure 3 – Schematic diagram of a multi-stage thermonuclear weapon.