hot brittle
41History of ferrous metallurgy — Iron (material) redirects here. For the chemical element Fe, see Iron. Bloomery smelting during the Middle Ages. The history of ferrous metallurgy began far back in prehistory. The earliest surviving iron artifacts, from the 5th millennium BC in… …
42Horseshoe — For other uses, see Horseshoe (disambiguation). Modern horseshoes are most commonly made of steel and nailed into the hoof wall …
43Blacksmith — For other uses, see Blacksmith (disambiguation). Blacksmith A blacksmith at work Occupation …
44Northern Cordilleran Volcanic Province — NCVP …
45Strengthening mechanisms of materials — Methods have been devised to modify the yield strength, ductility, and toughness of both crystalline and amorphous materials. These strengthening mechanisms give engineers the ability to tailor the mechanical properties of materials to suit a… …
46geology — /jee ol euh jee/, n., pl. geologies. 1. the science that deals with the dynamics and physical history of the earth, the rocks of which it is composed, and the physical, chemical, and biological changes that the earth has undergone or is… …
47MythBusters (2006 season) — Country of origin Australia United States No. of episodes 28 (includes 2 specials) Broadcast Original channel Discovery Channel …
48fragile — 1 Fragile, frangible, brittle, crisp, short, friable mean easily broken. They are, however, not often interchangeable. Fragile (see also WEAK) is applicable to whatever must be handled or treated carefully lest it be broken {a fragile antique… …
49Seismic retrofit — Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. Other retrofit techniques are applicable to areas subject to tropical cyclones,… …
50Teller–Ulam design — The basics of the Teller–Ulam design. Radiation from a primary fission bomb compresses a secondary section containing both fission and fusion fuel. The compressed secondary is heated from within by a second fission explosion. The Teller–Ulam… …
