fallout contamination
41Little Boy — Infobox Weapon name= Little Boy caption= A post war Little Boy model. origin= United States type= Nuclear weapon is explosive=yes designer= design date= manufacturer= unit cost= production date= number= weight= 8,818.49 lbs. 4,000 kg length= 9.84 …
42Operation Castle — Castle Romeo Information Country United States Test site Pacific Proving Grounds Period March May 1954 Number of tests …
43Environmental radioactivity — is produced by radioactive materials in the human environment. While some radioisotopes, such as strontium 90 (90Sr) and technetium 99 (99Tc), are only found on Earth as a result of human activity, and some, like potassium 40 (40K), are only… …
44Operation Totem — Obelisk at the Totem One test site Operation Totem was a pair of British atmospheric nuclear tests which took place on 15th October 1953. The only ones conducted at a temporary site in Australia, Emu Field, they followed the Operation Hurricane… …
45Anti-nuclear groups in the United States — Main article: Anti nuclear movement in the United States Anti nuclear movement Australia  · Austria  · Canada …
46List of radiation topics — *absorbed dose *equivalent dose *hormesis *Louis Harold Gray (British physicist) *rad (unit) *radar *radar astronomy *radar cross section *radar detector *radar gun *radar jamming *(radar reflector) corner reflector *radar warning receiver… …
47Chernobyl compared to other radioactivity releases — This article compares the radioactivity release and decay from the Chernobyl disaster with various other events which involved a release of uncontrolled radioactivity. Contents 1 Chernobyl compared to background radiation 2 Chernobyl compared… …
48Nuclear weapon design — The first nuclear weapons, though large, cumbersome and inefficient, provided the basic design building blocks of all future weapons. Here the Gadget device is prepared for the first nuclear test: Trinity. Nuclear weapon designs are physical,… …
49Uranium — (pronEng|jʊˈreɪniəm) is a silvery gray metallic chemical element in the actinide series of the periodic table that has the symbol U and atomic number 92. It has 92 protons and 92 electrons, 6 of them valence electrons. It can have between 141 and …
50Ionizing radiation — consists of highly energetic particles or waves that can detach (ionize) at least one electron from an atom or molecule. Ionizing ability depends on the energy of the impinging individual particles or waves, and not on their number. A large flood …
