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A firearm is any type of gun that uses an explosive charge and is designed to be readily carried and used by an individual. The term is legally defined...

MP3 (formally MPEG-1 Audio Layer III or MPEG-2 Audio Layer III) is a coding format for digital audio developed largely by the Fraunhofer Society in Germany...

The history of mobile phones covers mobile communication devices that connect wirelessly to the public switched telephone network. While the transmission...

Schlumberger NV (French: [ʃlumbɛʁʒe, ʃlœ̃b-]), doing business as SLB, also known as Schlumberger Limited, is an American oilfield services company. As...

4G is the fourth generation of broadband cellular network technology, succeeding 3G and preceding 5G. A 4G system must provide capabilities defined by...

A space suit or spacesuit is a garment worn to keep a human alive in the harsh environment of outer space, vacuum and temperature extremes. Space suits...

GLONASS (ГЛОНАСС, IPA: [ɡɫɐˈnas]; Russian: Глобальная навигационная спутниковая система, romanized: Global'naya Navigatsionnaya Sputnikovaya Sistema, lit...

Extensible Messaging and Presence Protocol (XMPP, originally named Jabber) is an open communication protocol designed for instant messaging (IM), presence...

SpaceShipOne is an experimental air-launched rocket-powered aircraft with sub-orbital spaceflight capability at speeds of up to 3,000 ft/s (2,000 mph)...

A plasma display panel (PDP) is a type of flat-panel display that uses small cells containing plasma: ionized gas that responds to electric fields. Plasma...

A tantō (短刀, 'short sword') is one of the traditionally made Japanese swords (nihontō) that were worn by the samurai class of feudal Japan. The tantō dates...

A humidifier is a household appliance or device designed to increase the moisture level in the air within a room or an enclosed space. It achieves this...

Energy security is the association between national security and the availability of natural resources for energy consumption (as opposed to household...

Mobile advertising is a form of advertising via mobile (wireless) phones or other mobile devices. It is a subset of mobile marketing, mobile advertising...

SpaceX COTS Demo Flight 1 was the first orbital spaceflight of the Dragon cargo spacecraft, and the second overall flight of the Falcon 9 rocket manufactured...

Space Network (SN) is a NASA program that combines space and ground elements to support spacecraft communications in Earth vicinity. The SN Project Office...

Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand—known as casting sand—as the mold material. The...

The tooltip, also known as infotip or hint, is a common graphical user interface (GUI) element in which, when hovering over a screen element or component...

Ceramic engineering is the science and technology of creating objects from inorganic, non-metallic materials. This is done either by the action of heat...

A wood-burning stove (or wood burner or log burner in the UK) is a heating or cooking appliance capable of burning wood fuel, often called solid fuel,...