breakthrough ideas
51Tank classification — The Challenger 2 is a main battle tank Tank classification is a taxonomy of identifying either the intended role or weight class of tanks. The classification by role was used primarily during the developmental stage of the national armoured… …
52King Crimson — This article is about the musical group. For the character in novels by Stephen King, see Crimson King. King Crimson King Crimson, 1982, l r Robert Fripp, Adrian Belew, Tony Levin, and Bill Bruford Background information …
53Get a Mac — Mac vs. PC redirects here. For a comparison between operating systems, see comparison of operating systems. John Hodgman as PC and Justin Long as Mac. The Get a Mac campaign is a television advertising campaign created for Apple Inc. by TBWAMedia …
54nuclear weapon — an explosive device whose destructive potential derives from the release of energy that accompanies the splitting or combining of atomic nuclei. [1945 50] * * * or atomic weapon or thermonuclear weapon Bomb or other warhead that derives its force …
55Mathematics of radio engineering — A complex valued function. The mathematics of radio engineering is a pleasant and very useful subject. This article is an attempt to provide a reasonably comprehensive summary of this almost limitless topic. While the ideas have historically… …
56Список награждённых Национальной медалью науки США — Джошуа Ледерберг (справа) получает Национальную медаль науки из рук Президента США Джорджа Буша старшего Список …
57SYNAGOGUE — This article is arranged according to the following outline. origins and history until the first century first century c.e. middle ages modern period …
58Soundgarden — Sound Garden redirects here. For the art installation, see A Sound Garden. Soundgarden Soundgarden performing live in July 2011. (L R: Matt Cameron, Kim Thayil, Chris Cornell, Ben Shepherd.) …
59John Zorn — Zorn performing in 2006 Background information Also known as Dekoboko Hajime, Rav Tzizit Born September 2, 1953 …
60History of the tank — This article is about the history of the tank.The prehistory of the tank [ thumb|right|Recreation of an armoured vehicle designed by Leonardo da Vinci at the Château d Amboise] The problem of advancing to attack while under fire is as old as… …
