case-hardened steel
81Ceramic engineering — Simulation of the outside of the Space Shuttle as it heats up to over 1,500 °C (2,730 °F) during re entry into the Earth s atmosphere Ceramic engineering is the science and technology of creating objects from inorganic, non metallic… …
82bullet — bulletless, adj. bulletlike, adj. /bool it/, n., v., bulleted, bulleting. n. 1. a small metal projectile, part of a cartridge, for firing from small arms. See diag. under cartridge. 2. a cartridge. 3. a small ball. 4. Print. a heavy dot for… …
83Battleship — For other uses, see Battleship (disambiguation). The firepower of a battleship demonstrated by USS Iowa (ca. 1984) A battleship is a large armored warship with a main battery consisting of heavy caliber guns. Battleships were large …
84Die (manufacturing) — For the thread cutting tool, see Tap and die. A die is a specialized tool used in manufacturing industries to cut or shape material using a press. Like molds, dies are generally customized to the item they are used to create. Products made with… …
85Whammy bar — A whammy bar, tremolo arm/bar, or vibrato arm/bar is a component of a guitar, used to add vibrato to the sound by changing the tension of the strings, typically at the bridge or tailpiece. The whammy bar enables the player to quickly vary the… …
86Rolling resistance — Figure 1  Hard wheel rolling on and deforming a soft surface, resulting in the reaction force from the surface having a component that opposes the motion. Rolling resistance, sometimes called rolling friction or rolling drag, is the… …
87Tremolo arm — A tremolo arm or tremolo bar (also called a whammy bar or wang bar ) is a lever attached to the bridge and/or the tailpiece of an electric guitar or archtop guitar to enable the player to quickly vary the tension and sometimes the length of the… …
88High Mobility Multipurpose Wheeled Vehicle — This article refers to the Military HMMWV, not the civilian Hummer sold by General Motors Infobox Automobile caption=U.S. Marine HMMWV in difficult terrain in Afghanistan name=High Mobility Multipurpose Wheeled Vehicle (Humvee) manufacturer=AM… …
89Seven-Branched Sword — Replica of the Seven Branched Sword or Nanatsusaya no Tachi or Chiljido at the War Memorial in Seoul, South Korea. Japanese name …
90Humvee — This article is about the military vehicle. For the defunct brand of civilian vehicles, see Hummer. Humvee United States Marine Corps HMMWV in difficult terrain in A …
