hollow trunnion
1trunnion — n. 1 a supporting cylindrical projection on each side of a cannon or mortar. 2 a hollow gudgeon supporting a cylinder in a steam engine and giving passage to the steam. Etymology: F trognon core, tree trunk, of unkn. orig …
2Dahlgren gun — John A. Dahlgren standing next to a 50 pounder Dahlgren Rifle aboard the U.S.S. Pawnee, 1865 …
3steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …
4Rodman gun — refers to a series of American Civil War era columbiads designed by Union artilleryman Thomas Jackson Rodman [ [http://www.cwartillery.org/afammen.html Thomas Jackson Rodman] , Confederate Artillerymen, The Civil War Artillery Page. Retrieved 12… …
5Milling cutter — Milling cutters are cutting tools typically used in milling machines or machining centres (and occasionally in other machine tools). They remove material by their movement within the machine (e.g., a ball nose mill) or directly from the cutter s… …
6Floodgate — Tokyo floodgates created to protect from typhoon surges Floodgates are adjustable gates used to control water flow in flood barriers, reservoir, river, stream, or levee systems. They may be designed to set spillway crest heights in dams, to… …
7military technology — Introduction range of weapons, equipment, structures, and vehicles used specifically for the purpose of fighting. It includes the knowledge required to construct such technology, to employ it in combat, and to repair and replenish it.… …
8Sunshine Skyway Bridge — Carries …
9National Register of Historic Places listings in Detroit, Michigan — Location of Detroit in Michigan …
