fill insulation
81Window — This article is about the part of a building. For the Microsoft operating system, see Microsoft Windows. For other uses, see Window (disambiguation) and Windows (disambiguation). Pair of windows, Old Ship Church, Hingham, Massachusetts …
82Malleefowl — Conservation status Vulnerable (IUCN 3.1) …
83Scramjet — Part of a series on Aircraft propulsion Shaft engines (to drive pr …
84Mars Exploration Rover — Artist s conception of rover on Mars Part of a panorama taken by the Spi …
85Gas 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… …
86Firestop — A firestop is a passive fire protection system of various components used to seal openings and joints in fire resistance rated wall and/or floor assemblies, based on fire testing and certification listings. Unprotected openings in fire… …
87History of electromagnetism — The history of electromagnetism, that is the human understanding and recorded use of electromagnetic forces, dates back over two thousand years ago, see Timeline of electromagnetism. The ancients must have been acquainted with the effects of… …
88System accident — A system accident is an unanticipated interaction of multiple failures in a complex system. This complexity can either be technological or organizational, and often is both.[1] A system accident can be very easy to see in hindsight, but very… …
89Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
90Drum heater — A drum heater – also called band heater, barrel heater, container heater or canister heater is used to reduce viscosity of liquids and gels by heating in order to fill, pump or bottle the respective liquid or to prevent liquids from freezing… …
