simple pressure
111Curb bit — A Western style curb bit with leather curb strap An English style Weymouth curb …
112airplane — /air playn /, n. 1. a heavier than air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc. 2. any similar heavier than air aircraft, as a glider or helicopter. Also …
113printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… …
114metamorphic rock — Any of a class of rocks that result from the alteration of preexisting rocks in response to changing geological conditions, including variations in temperature, pressure, and mechanical stress. The preexisting rocks may be igneous, sedimentary,… …
115Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
116Components of jet engines — Diagram of a typical gas turbine jet engine. Air is compressed by the fan blades as it enters the engine, and it is mixed and burned with fuel in the combustion section. The hot exhaust gases provide forward thrust and turn the turbines which… …
117Fuel injection — Fuel rail connected to the injectors that are mounted just above the intake manifold on a four cylinder engine. Fuel injection …
118Barometer — Schematic drawing of a simple mercury barometer with vertical mercury column and reservoir at base …
119Portable stove — A Portable stove is a stove specially designed to be portable and lightweight, as for camping.The division of portable stoves into several broad categories is based on the type of fuel used in the stove: stoves that use solid or liquid fuel that… …
120Association football tactics and skills — There are various individual skills and team tactics needed to play effective Association football. Football is in theory a very simple game, as illustrated by Kevin Keegan s famous assertion that his tactics for winning a match were to score… …
