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Gas metal arc welding (GMAW), sometimes referred to by its subtypes, metal inert gas (MIG) welding or metal active gas (MAG) welding, is a semi-automatic or automatic arc welding process in which a continuous and consumable wire electrode and a shielding gas are fed through a welding gun.
A scramjet (supersonic combustion ramjet) is a variation of a ramjet with the distinction being that some or all of the combustion process takes place supersonically. At higher speeds, it is necessary to combust supersonically to maximize the efficiency of the combustion process. Projections for the top speed of a scramjet engine (without additional oxidiser input) vary between Mach 12 and Mach 24 (orbital velocity).
The colonization of the Moon is the proposed establishment of permanent human communities on the Moon. Science fiction writers and advocates of space exploration have seen settlement of the Moon as a logical step in the expansion of humanity beyond the Earth.
Scanning tunneling microscope (STM) is a powerful technique for viewing surfaces at the atomic level. Its development in 1981 earned its inventors, Gerd Binnig and Heinrich Rohrer (at IBM Zürich), the Nobel Prize in Physics in 1986[1]. STM probes the density of states of a material using tunneling current. For STM, good resolution is considered to be 0.1 nm lateral resolution and 0.01 nm depth resolution[2]. The STM can be used not only in ultra high vacuum but also in air and various other liquid or gas ambients, and at temperatures ranging from near 0 kelvin to a few hundred degrees Celsius[3].
Gene therapy using an Adenovirus. A new gene is inserted into an adenovirus vector, which is used to introduce the modified DNA into a human cell. If the treatment is successful, the new gene will make a functional protein.
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Credit: Screenshot from Tom Clancy's Ghost Recon Advanced Warfighter 2.
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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.[4] However, with the popular use of the term "video game", it now implies any type of display device. The electronic systems used to play video games are known as platforms; examples of these are personal computers and video game consoles. These platforms are broad in range, from large computers to small handheld devices. Specialized video games such as arcade games, while previously common, have gradually declined in use.
The terraforming (literally, "Earth-shaping") of a planet, moon, or other body is the hypothetical process of deliberately modifying its atmosphere, temperature, surface topography or ecology to be similar to those of Earth in order to make it habitable by humans.
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Credit: Richard Greenhill, Hugo Elias, Shadow Robot Company
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Robotics is the science and technology of robots, their design, manufacture, and application.[5] Robotics requires a working knowledge of electronics, mechanics, and software, and is usually accompanied by a large working knowledge of many subjects.[6] A person working in the field is a roboticist.
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Credit: Original uploader was Louisehui at en.wikipedia
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High-tech architecture, also known as Late Modernism or Structural Expressionism, is an architectural style that emerged in the 1970s, incorporating elements of high-tech industry and technology into building design. High-tech architecture appeared as a revamped modernism, an extension of those previous ideas aided by even more advances in technological achievements.
Most authorities regard the wheel as one of the oldest and most important inventions, which originated in ancient Mesopotamia in the 5th millennium BC (Ubaid period), originally in the function of potter's wheels. Near the northern side of the Caucasus several graves were found, in which since 3700 BC people had been buried on wagons or carts (both types). The earliest depiction of what may be a wheeled vehicle (here a wagon—four wheels, two axles), is on the Bronocice pot, a ca. 3500 BC clay pot excavated in southern Poland.
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Credit: Luke E.S. Romano, digital painting of Azzurra De Sanctis (public domain)
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Digital art most commonly refers to art created on a computer in digital form. In an expanded sense, "digital art" is a term applied to contemporary art that uses the methods of mass production or digital media. The impact of digital technology has transformed traditional activities such as painting, drawing and sculpture, while new forms, such as net art, digital installation art, and virtual reality, have been recognized artistic practices.
During the growth of the ancient civilizations, ancient technology was the result from advances in engineering in ancient times. These advances in the history of technology stimulated societies to adopt new ways of living and governance.
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Credit: Dwayne Reed at en.wikipedia
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Neurology (from Greek νεῦρον, neuron, "nerve"; and -λογία, -logia) is a medical specialty dealing with disorders of the nervous system. Specifically, it deals with the diagnosis and treatment of all categories of disease involving the central, peripheral, and autonomic nervous systems, including their coverings, blood vessels, and all effector tissue, such as muscle.
Arcology, from the words "architecture" and "ecology,"is a set of architectural design principles aimed toward the design of enormous habitats (hyperstructures) of extremely high human population density. These largely hypothetical structures, called "arcologies," would contain a variety of residential and commercial facilities and minimize individual human environmental impact. They are often portrayed as self-contained or economically self-sufficient. The concept has been primarily popularized by architect Paolo Soleri, and appears commonly in science fiction.
Ecumenopolis (from Greek: οικουμένη, meaning world, and πόλις (polis) meaning city, thus a city made of the whole world; pl. ecumenopolises or ecumenopoleis) is a word invented in 1967 by the Greek city planner Constantinos Doxiadis to represent the idea that in the future urban areas and megalopolises would eventually fuse and there would be a single continuous worldwide city as a progression from the current urbanization and population growth trends. Before the word ecumenopolis had been coined, the American religious leader Thomas Lake Harris (1823-1906) mentioned city-planets in his verses, and science fiction author Isaac Asimov uses the city-planet Trantor as the setting of some of his novels.
