| Abraham Lincoln |birth_place =Hardin County, Kentucky Abraham_Lincoln
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| Albert Einstein | birth_place = Ulm, Württemberg, Germany Albert_Einstein
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| Alexander Graham Bell | death_place = Beinn Bhreagh, Nova Scotia, Canada. Alexander_Graham_Bell
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| Americium Americium () is a synthetic element that has the symbol Am and atomic number 95. A radioactive metallic element, americium is an actinide that was obtained in 1944 by bombarding plutonium with neutrons and was the fourth transuranic element to be discovered. Americium
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| Aluminium Aluminium (, ) or aluminum (, see spelling below) is a silvery white and ductile member of the boron group of chemical elements. It has the symbol Al; its atomic number is 13. Aluminium
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| Anchor An anchor is an object, often made out of metal, that is used to attach a ship to the bottom of a body of water at a specific point. There are two primary classes of anchors—temporary and permanent. Anchor
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| Cue sports Cue sports (sometimes spelled cuesports) are a wide variety of games of skill generally played with a cue stick which is used to strike billiard balls, moving them around a cloth-covered billiards table bounded by rubber . Cue_sports
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| Bakelite Bakelite () is a material based on the thermosetting phenol formaldehyde resin, polyoxybenzylmethylenglycolanhydride developed in 1907–1909 by Belgian Dr. Leo Baekeland. Bakelite
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| BT Group ) | BT_Group
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| Copyright Copyright is a legal concept, enacted by governments, giving the creator of an original work of authorship exclusive rights to control its distribution, usually for a limited time, after which the work enters the public domain. Generally, it is "the right to copy", but usually provides the author with other rights as well, such as the right to be credited for the work, to determine who may adapt the work to other forms, who may perform the work, who may financially benefit from it, and other, related rights. Copyright
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| Video game A video game is a game that involves interaction with a user interface to generate visual feedback on a video device. The word video in video game traditionally referred to a raster display device. Video_game
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| Concrete Concrete is a construction material composed of cement (commonly Portland cement) as well as other cementitious materials such as fly ash and slag cement, aggregate (generally a coarse aggregate such as gravel, limestone, or granite, plus a fine aggregate such as sand), water, and chemical admixtures. The word concrete comes from the Latin word "concretus", which means "hardened" or "hard". Concrete
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| Cathode ray tube The cathode ray tube (CRT) is a vacuum tube containing an electron gun (a source of electrons) and a fluorescent screen, with internal or external means to accelerate and deflect the electron beam, used to form images in the form of light emitted from the fluorescent screen. The image may represent electrical waveforms (oscilloscope), pictures (television, computer monitor), radar targets and others. Cathode_ray_tube
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| Charles Proteus Steinmetz | birth_place = Breslau, Prussian Silesia Charles_Proteus_Steinmetz
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| Cannon A cannon is a type of artillery, usually large and tubular, that uses gunpowder or other explosive-based propellants to launch a projectile over a distance. Cannon vary in caliber, range, mobility, rate of fire, angle of fire, and firepower; different forms of cannon combine and balance these attributes in varying degrees, depending on their intended use on the battlefield. Cannon
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| Mouse (computing) In computing, a mouse (plural mice, mouse devices, or mouses) is a pointing device that functions by detecting two-dimensional motion relative to its supporting surface. Physically, a mouse consists of a small case, held under one of the user's hands, with one or more buttons. Mouse_(computing)
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| Collectible card game Collectible card games (CCGs), also called trading card games (TCGs) or customizable card games (CCGs), are played using specially designed sets of cards. While trading cards have been around for longer, CCGs combine the appeal of collecting with strategic gameplay. Collectible_card_game
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| Calculator A calculator is device for performing mathematical calculations, distinguished from a computer by having a limited problem solving ability and an interface optimized for interactive calculation rather than programming. Calculators can be hardware or software, and mechanical or electronic, and are often built into devices such as PDAs or mobile phones. Calculator
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| Cable car (railway) A cable car or cable railway is a mass transit system using rail cars that are propelled by a continuously moving cable running at a constant speed. Individual cars stop and start by releasing and gripping this cable as required. Cable_car_(railway)
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| ClearType ClearType is the Microsoft implementation of subpixel rendering technology, aiming to improve the appearance of text on certain types of computer display screens, especially LCD flat panel monitors. ClearType
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| Diffie-Hellman key exchange Diffie-Hellman key exchange (D-H) is a cryptographic protocol that allows two parties that have no prior knowledge of each other to jointly establish a shared secret key over an insecure communications channel. This key can then be used to encrypt subsequent communications using a symmetric key cipher. Diffie-Hellman_key_exchange
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| Data Encryption Standard The Data Encryption Standard (DES) is a cipher (a method for encrypting information) selected by NBS as an official Federal Information Processing Standard (FIPS) for the United States in 1976 and which has subsequently enjoyed widespread use internationally. The algorithm was initially controversial with classified design elements, a relatively short key length, and suspicions about a National Security Agency (NSA) backdoor. Data_Encryption_Standard
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| Dynamite Dynamite is an explosive based on the explosive potential of nitroglycerin, initially using diatomaceous earth (kieselgur: US Spelling; kieselguhr: UK Spelling) or another absorbent substance such as sawdust as an adsorbent. It was invented by Swedish chemist and engineer Alfred Nobel in 1866 in Krümmel (Geesthacht, Schleswig-Holstein, Germany); and patented in 1867. Dynamite
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| Douglas Engelbart | birth_place = Portland, Oregon, USA Douglas_Engelbart
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| Diode In electronics, a diode is a two-terminal device ( thermionic diodes may also have one or two ancillary terminals for a heater). Diode
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| Diesel engine A diesel engine is an internal combustion engine which operates using the Diesel cycle (named after Dr. Rudolph Diesel). Diesel_engine
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| Door A door is a panel or barrier, usually hinged or sliding, that is used to cover an opening in a wall or partition going into a building or space. A door can be opened to give access and closed more or less securely. Door
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| Dean L. Kamen Dean L. Kamen (born April 5, 1951) is an American entrepreneur and inventor from New Hampshire. Dean_L._Kamen
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| Enigma machine The Enigma machine is any one of a family of related electro-mechanical rotor machines used to generate ciphers for the encryption and decryption of secret messages. The Enigma was used commercially from the early 1920s on, and was also adopted by the military and governmental services of a number of nations—most famously by Nazi Germany before and during World War II. Enigma_machine
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| Electrical telegraph The electrical telegraph is a telegraph that uses electric signals. The electromagnetic telegraph is a device for human-to-human transmission of coded text messages over wire. Electrical_telegraph
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| Ethernet Ethernet is a family of frame-based computer networking technologies for local area networks (LANs). The name comes from the physical concept of the ether. Ethernet
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| Expert An "expert" () is someone widely recognized as a reliable source of [or skill] whose faculty for judging or deciding rightly, justly, or wisely is accorded authority and status by their [[Peer group|peers or the public. An expert, more generally, is a person with extensive knowledge or ability in a particular area of study. Expert
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| Enrico Fermi | birth_place = Rome, Italy Enrico_Fermi
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| Edwin Howard Armstrong | birth_place = New York, NY Edwin_Howard_Armstrong
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| Final Fantasy is a media franchise created by Hironobu Sakaguchi and owned by Square Enix that includes video games, motion pictures, and other merchandise. The series began in 1987 as an eponymous console role-playing game (RPG) developed by Square, spawning a video game series that became the central focus of the franchise. Final_Fantasy
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| Felix Wankel |birth_place = Lahr, Germany Felix_Wankel
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| Guglielmo Marconi | birth_place = Palazzo Marescalchi, Bologna, Italy Guglielmo_Marconi
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| Geiger counter A Geiger counter, also called a Geiger-Müller counter, is a type of particle detector that measures ionizing radiation. Geiger_counter
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| Gatling gun The Gatling gun is considered by some to have been the first machine gun: although it did not automatically reload under its own power, it was capable of firing continuously. Each barrel fires a single shot as it reaches a certain point in the cycle after which it ejects the spent cartridge, loads a new round, and in the process, somewhat cools down. Gatling_gun
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| Herman Hollerith | birth_place = Buffalo, New York Herman_Hollerith
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| Heavy water | Section2 = Heavy_water
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| Hall effect The Hall effect refers to the potential difference (Hall voltage) on the opposite sides of an electrical conductor through which there is an electric current, created by a magnetic field applied perpendicularly to the current. Edwin Hall discovered this effect in 1879. Hall_effect
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| Internal combustion engine The internal combustion engine is an engine in which the combustion of fuel and an oxidizer (typically air) occurs in a confined space called a combustion chamber. This exothermic reaction creates gases at high temperature and pressure, which are permitted to expand. Internal_combustion_engine
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| Intel 8080 The Intel 8080 was an early microprocessor designed and manufactured by Intel. The 8-bit CPU was released in April 1974 running at 2 MHz (at up to 500,000 instructions per second), and is generally considered to be the first truly usable microprocessor CPU design. Intel_8080
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| Integrated circuit In electronics, an integrated circuit (also known as IC, microcircuit, microchip, silicon chip, or chip) is a miniaturized electronic circuit (consisting mainly of semiconductor devices, as well as passive components) that has been manufactured in the surface of a thin substrate of semiconductor material. Integrated circuits are used in almost all electronic equipment in use today and have revolutionized the world of electronics. Integrated_circuit
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| Insurance Insurance, in law and economics, is a form of risk management primarily used to hedge against the risk of a contingent loss. Insurance is defined as the equitable transfer of the risk of a loss, from one entity to another, in exchange for a premium, and can be thought of a guaranteed small loss to prevent a large, possibly devastating large loss. Insurance
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| Irving Langmuir |birth_place = Brooklyn, New York Irving_Langmuir
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| JPEG In computing, JPEG (pronounced JAY-peg; ) is a commonly used method of compression for photographic images. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality. JPEG
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| Kevlar Kevlar is the registered trademark for a light, strong para-aramid synthetic fiber, related to other aramids such as Nomex and Technora. Kevlar
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| Keyboard technology There are many types of keyboard, usually differentiated by the switch technology employed in their operation. Since there are so many switches needed (usually about 80-110) and because they have to be highly reliable, this usually defines the keyboard. Keyboard_technology
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