subcritical state
41Liste der Träger des Ig-Nobelpreises — In dieser Liste werden die Preisträger des Ig Nobelpreises aufgelistet und mit ihren ausgezeichneten Arbeiten kurz vorgestellt: Inhaltsverzeichnis 1 1991 bis 2000 1.1 1991 1.2 1992 1.3 1993 …
42Nuclear reactor — Core of CROCUS, a small nuclear reactor used for research at the EPFL in Switzerland This article is a subarticle of Nuclear power. A nuclear reactor is a device to initiate and control a sustained nuclear chain reaction. Most commonly they are… …
43Comprehensive Nuclear-Test-Ban Treaty — (CTBT) Signed 10 September 1996 Location New York City Effective Not in force Condition 180 days after it is ratified by all 44 Annex 2 countries: Algeria, Argentina, Australia, Austria, Bangladesh, B …
44May 1946 — January – February – March April – May – June – July  – August – September  – October  – November – December The following events occurred in May, 1946: Contents 1 May 1, 1946 (Wednesday) 2 May 2, 1946 …
45Nuclear fission — For the generation of electrical power by fission, see Nuclear power. Splitting the atom redirects here. For the EP, see Splitting the Atom. Nuclear physics Radioactive decay Nuclear fission Nuclear fusio …
46Trinity (nuclear test) — For other uses, see Trinity (disambiguation). Trinity The Trinity explosion, 0.016 seconds after detonation. The fireball is about 600 feet (200 m) wide. The black specks silhouetted along the horizon are trees. Information Country… …
47List of fictional elements, materials, isotopes and atomic particles — This list contains chemical elements, materials, isotopes or (sub)atomic particle that exist primarily in works of fiction (usually fantasy or science fiction). No actual periodic elements end in ite , though many minerals have names with this… …
48Annealing (metallurgy) — Annealing, in metallurgy and materials science, is a heat treatment wherein a material is altered, causing changes in its properties such as strength and hardness. It is a process that produces conditions by heating to above the recrystallization …
49Underground nuclear testing — Preparation for an underground nuclear test at the Nevada Test Site in the 1990s. Nuclear weapons …
50Boiler (steam generator) — Contents 1 Steam generator (component of prime mover) 2 Boiler types 2.1 Haycock and wagon top boilers …
