Rifling — refers to the helix shaped pattern in the barrel of a firearm, which imparts a spin to a projectile around its long axis. This spin serves to gyroscopically stabilize the projectile, improving its aerodynamic stability and accuracy.Rifling is… … Wikipedia
Glossary of nautical terms — This is a glossary of nautical terms; some remain current, many date from the 17th 19th century. See also Wiktionary s nautical terms, Category:Nautical terms, and Nautical metaphors in English. Contents: A B C D E F G H I J K L M N O P Q R … Wikipedia
Diamond tool — A close up of the segment of a diamond saw blade A diamond tool is a cutting tool with diamond grains fixed on the functional parts of the tool via a bonding material or another method.[1] As diamond is a superhard material, diamond tools have… … Wikipedia
Churchill Machine Tool Company — The Churchill Machine Tool Company Limited Type Machine Tool Manufacturer Industry Engineering Fate Taken over, liquidated … Wikipedia
American literature — For the journal of the same name, see American Literature (journal). American literature is the written or literary work produced in the area of the United States and its preceding colonies. For more specific discussions of poetry and theater,… … Wikipedia