gravure printing — Printing processes used for catalogs, magazines, newspaper supplements, cartons, floor and wall coverings, textiles, and plastics. The Bohemian Karel Klíč made photogravure a practical commercial process in 1878. An image is etched in the copper… … Universalium
ABC Dragonfly — The ABC Dragonfly was a British radial engine developed towards the end of the First World War. It was expected to deliver excellent performance for the time and was ordered in very large numbers. It proved, however, to be extremely unreliable… … Wikipedia
Shotgun shell — A 12 gauge shotgun shell in a transparent plastic hull, allowing the contents to be seen. From left to right: gunpowder, over powder wad, shot wad, #8 birdshot, and over shot wad A shotgun shell (shotshell) is a self contained cartridge loaded… … Wikipedia
Torpedo — The modern torpedo (historically called an automotive, automobile, locomotive, or fish torpedo) is a self propelled explosive projectile weapon, launched above or below the water surface, propelled underwater toward a target, and designed to… … Wikipedia
Lee-Enfield — This article is about the early twentieth century British rifle. For other uses, see Enfield rifle (disambiguation). Lee Enfield Short Magazine Lee Enfield No. 1 Mk. III Type … Wikipedia
Aegean civilizations — The Bronze Age civilizations that arose and flourished с 3000–1000 BC in the region bordering the Aegean Sea. They included Crete, the Cyclades, the Greek mainland south from Thessaly, including the Peloponnese, and Macedonia, Thrace, and western … Universalium
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
Baghdad Battery — The Baghdad Battery is the common name for a number of artifacts created in Mesopotamia, possibly during the Parthian or Sassanid period (the early centuries AD). These jars were probably discovered in 1936 in the village of Khuyut Rabbou a, near … Wikipedia
Cox model engine — Cox Model Engines Cox Fokker DVII Ready To Fly Control Line Model Plane … Wikipedia
Chevrolet Vega — 1972 Chevrolet Vega GT Hatchback Coupe Manufacturer Chevrolet Division of General Motors Also called Vega 2300 … Wikipedia
Cupronickel — or copper nickel or cupernickel is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese. Cupronickel is highly resistant to corrosion in seawater, because its electrode potential is adjusted to be neutral … Wikipedia