brick fuel
31Biogas — Swamp gas redirects here. For the obsolete theory of emanations from swamps causing disease, see Miasma theory of disease. Pipes carrying biogas (foreground), natural gas and condensate …
32List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
33industrial glass — Introduction solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… …
34Hoffmann kiln — The Hoffmann Kiln is a series of batch process kilns. Hoffmann Kilns are the most common kiln used in production of bricks and some other ceramic products. A Hoffmann kiln consists of a main fire passage surrounded on each side by several small… …
35metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …
36Graphite — For other uses, see Graphite (disambiguation). Graphite Graphite specimen General Category Native element mineral …
37Oklahoma City bombing — The Alfred P. Murrah Federal Building two days after the bombing Location …
38List of military nuclear accidents — This article lists notable military accidents involving nuclear material. Civilian accidents are listed at List of civilian nuclear accidents. For a general discussion of both civilian and military accidents, see nuclear and radiation accidents.… …
39Donald L. Campbell — Born August 5, 1904(1904 08 05) Clinton, Iowa, United States Died September 14, 2002( …
40F-4 Phantom II — Infobox Aircraft name=F 4 Phantom II type=Fighter bomber national origin = United States manufacturer= McDonnell Aircraft/ McDonnell Douglas caption=F 4E from 347th TFW dropping convert|500|lb|abbr=on Mark 82 bombs designer= first flight=27 May… …
