vapour jet
41Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …
42de Havilland Comet — This article is about the jet airliner. For the 1930s racing aircraft, see de Havilland DH.88. DH 106 Comet …
43Lutte Contre L'incendie — Des pompiers irakiens face à un incendie criminel au cœur de Bagdad …
44Lutte contre le feu — Lutte contre l incendie Des pompiers irakiens face à un incendie criminel au cœur de Bagdad …
45Lutte contre les incendies — Lutte contre l incendie Des pompiers irakiens face à un incendie criminel au cœur de Bagdad …
46cluster — clusteringly, adv. clustery, adj. /klus teuhr/, n. 1. a number of things of the same kind, growing or held together; a bunch: a cluster of grapes. 2. a group of things or persons close together: There was a cluster of tourists at the gate. 3. U.S …
47earth — /errth/, n. 1. (often cap.) the planet third in order from the sun, having an equatorial diameter of 7926 mi. (12,755 km) and a polar diameter of 7900 mi. (12,714 km), a mean distance from the sun of 92.9 million mi. (149.6 million km), and a… …
48Kerosene lamp — The kerosene lamp (widely known in Britain as a paraffin lamp) is any type of lighting device which uses kerosene (paraffin) as a fuel. There are two main types of kerosene lamp which work in different ways, the wick lamp and the pressure lamp… …
49Gas compressor — A gas compressor is a mechanical device that increases the pressure of a gas by reducing its volume. Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. As gases are… …
50astronomy — /euh stron euh mee/, n. the science that deals with the material universe beyond the earth s atmosphere. [1175 1225; ME astronomie ( < AF) < L astronomia < Gk. See ASTRO , NOMY] * * * I Science dealing with the origin, evolution, composition,… …
