resistance to plastic flow
21Friction stir welding — (FSW) is a solid state joining process (meaning the metal is not melted during the process) and is used for applications where the original metal characteristics must remain unchanged as far as possible. This process is primarily used on aluminum …
22Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
23cardiovascular disease — Introduction any of the diseases, whether congenital or acquired, of the heart and blood vessels (blood vessel). Among the most important are atherosclerosis, rheumatic heart disease, and vascular inflammation. Cardiovascular diseases are a …
24Electrostatics — For a less technical introduction, see Static electricity. Electromagnetism …
25Shear modulus — SI symbol: G SI unit: gigapascal Derivations from other quantities: G = τ / γ …
26stress — stressless, adj. stresslessness, n. /stres/, n. 1. importance or significance attached to a thing; emphasis: to lay stress upon good manners. 2. Phonet. emphasis in the form of prominent relative loudness of a syllable or a word as a result of… …
27insulator — /in seuh lay teuhr, ins yeuh /, n. 1. Elect. a. a material of such low conductivity that the flow of current through it is negligible. b. insulating material, often glass or porcelain, in a unit form designed so as to support a charged conductor… …
28Moisture vapor transmission rate — (MVTR), also water vapor transmission rate (WVTR), is a measure of the passage of water vapor through a substance. There are many industries where moisture control is critical. Moisture sensitive foods and pharmeceuticals are put in packaging… …
29landslide — /land sluyd /, n., v., landslid, landslid or landslidden, landsliding. n. 1. the downward falling or sliding of a mass of soil, detritus, or rock on or from a steep slope. 2. the mass itself. 3. an election in which a particular victorious… …
30Project Habakkuk — or Habbakuk (spelling varies; see below) was a plan by the British in World War II to construct an aircraft carrier out of pykrete (a mixture of wood pulp and ice), for use against German U boats in the mid Atlantic, which were beyond the flight… …
