- screw bronze
- • автоматен бронз
English-Bulgarian polytechnical dictionary . 2013.
English-Bulgarian polytechnical dictionary . 2013.
Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… … Wikipedia
Archimedes' screw — was operated by hand and could raise water efficiently … Wikipedia
Ancient technology — See Ancient technology in Stargate for the technology of the aliens known as the Ancients in the fictional Stargate universe .During the growth of the ancient civilizations, ancient technology was the result from advances in engineering in… … Wikipedia
Ancient history — Ancient redirects here. For other uses, see Ancient (disambiguation). The times before writing belong either to protohistory or to prehistory. Ancient history is the study of the written past [Crawford, O. G. S. (1927). Antiquity. [Gloucester,… … Wikipedia
hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… … Universalium
printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… … Universalium
technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… … Universalium
Orders, decorations, and medals of Bulgaria — Orders, decorations and medals of Bulgaria are regulated by the law on the Orders and Medals of the Republic Of Bulgaria of 29 May 2003. The National Military History Museum Of Bulgaria in Sofia currently has over 150 Bulgarian Orders in the… … Wikipedia
Archimedes — For other uses, see Archimedes (disambiguation). Archimedes of Syracuse (Greek: Ἀρχιμήδης) … Wikipedia
Dahlgren gun — John A. Dahlgren standing next to a 50 pounder Dahlgren Rifle aboard the U.S.S. Pawnee, 1865 … Wikipedia
metalwork — metalworker, n. /met l werrk /, n. objects made of metal. [1840 50; METAL + WORK] * * * Useful and decorative objects fashioned of various metals. The oldest technique is hammering. After с 2500 BC, casting was also used, molten metal being… … Universalium