cross-compound turbine
41Glossary of environmental science — This is a glossary of environmental science.Environmental science is the study of interactions among physical, chemical, and biological components of the environment. Environmental science provides an integrated, quantitative, and… …
42Diesel engine — Diesel engines in a museum Diesel generator on an oil tanker …
43Rolls-Royce Conway — The RB.80 Conway was the first by pass engine (or turbofan) to go into service in the world. Development started at Rolls Royce in the 1940s, but it was used only briefly in the late 1950s and early 1960s before other turbofan designs were… …
44Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… …
45Ironclad warship — An ironclad was a steam propelled warship of the later 19th century, protected by iron or steel armor plates. [Hill, Richard. War at Sea in the Ironclad Age ISBN 0 304 35273 X; p.17] The ironclad was developed as a result of the vulnerability of… …
46petroleum production — Introduction recovery of crude oil and, often, associated natural gas from the Earth. petroleum is a naturally occurring hydrocarbon material that is believed to have formed in deep sedimentary (sedimentary rock) beds from animal and …
47Sniper — For other uses, see Sniper (disambiguation). Sniper US Army sniper team shooting from within a room in Afghanistan with M24 SWS, 19 October 2006. Occupation Names Sniper Activity …
48November 2004 — November 2004: January – February – March – April – May – June – July – August – September – October – November – December See also: November 2004 in sports and November 2004 in science Events …
49RMS Queen Elizabeth 2 — ( QE2 ) is a Cunard Line ocean liner named after the earlier Cunard liner RMS|Queen Elizabeth, which in turn was named after Elizabeth Bowes Lyon, the Queen consort of George VI. She was the flagship of the line from 1969 until succeeded by… …
50History of submarines — The history of submarines covers the historical chronology and facts related to submarines , manned autonomous boats that operate underwater. It includes the history of submersibles , which were designed primarily to operate on the surface, and… …
