atomic key
51Tube Alloys — was the code name for the British nuclear weapon directorate during World War II, when the very possibility of nuclear weapons was kept at such a high level of secrecy that it had to be referred to by code even in the highest circles of… …
52Germany — /jerr meuh nee/, n. a republic in central Europe: after World War II divided into four zones, British, French, U.S., and Soviet, and in 1949 into East Germany and West Germany; East and West Germany were reunited in 1990. 84,068,216; 137,852 sq.… …
53amorphous solid — ▪ physics Introduction any noncrystalline solid in which the atoms and molecules are not organized in a definite lattice pattern. Such solids include glass, plastic, and gel. Solids and liquids (liquid) are both forms of condensed… …
54chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… …
55Alkali metal — Group → 1 ↓ Period 2 3 Li 3 …
56Julius and Ethel Rosenberg — Infobox Criminal subject name = Julius and Ethel Rosenberg image size = 200px image caption = Ethel and Julius Rosenberg after their conviction date of birth = birth date|mf=yes|1918|5|12|mf=y (Julius) birth date|mf=yes|1915|9|28|mf=y (Ethel)… …
57Operation Crossroads — Coordinates: 11°36′N 165°30′E / 11.6°N 165.5°E / 11.6; 165.5 …
58Nuclear weapons and the United Kingdom — United Kingdom Nuclear program start date 10 April 1940 First nuclear weapon test 2 October 1952 First fusion weapon test …
59nanotechnology — /nan euh tek nol euh jee, nay neuh /, n. any technology on the scale of nanometers. [1987] * * * Manipulation of atoms, molecules, and materials to form structures on the scale of nanometres (billionths of a metre). These nanostructures typically …
60U.S.–India Civil Nuclear Agreement — U.S. President George W. Bush and India s Prime Minister Manmohan Singh exchange handshakes in New Delhi on March 2, 2006. The 123 Agreement signed between the United States of America and the Republic of India is known as the U.S. India Civil… …
