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An Internet forum, or message board, is an online discussion site where people can hold conversations in the form of posted messages. They differ from...

Software testing is the act of checking whether software satisfies expectations. Software testing can provide objective, independent information about...

In telecommunications, packet switching is a method of grouping data into short messages in fixed format, i.e. packets, that are transmitted over a digital...

{{short description|Method used to accelerate spacecraft}} Spacecraft propulsion is any method used to accelerate spacecraft and artificial satellites...

A shotgun cartridge, shotshell, or shell is a type of rimmed, cylindrical (straight-walled) ammunition used specifically in shotguns. It is typically loaded...

An operational amplifier (often op amp or opamp) is a DC-coupled electronic voltage amplifier with a differential input, a (usually) single-ended output...

OS X Lion, also known as Mac OS X Lion, (version 10.7) is the eighth major release of macOS, Apple's desktop and server operating system for Mac computers...

The Space Shuttle external tank (ET) was the component of the Space Shuttle launch vehicle that contained the liquid hydrogen fuel and liquid oxygen oxidizer...

STS-133 (ISS assembly flight ULF5) was the 133rd mission in NASA's Space Shuttle program; during the mission, Space Shuttle Discovery docked with the International...

Direct3D is a graphics application programming interface (API) for Microsoft Windows. Part of DirectX, Direct3D is used to render three-dimensional graphics...

A space settlement (also called a space habitat, spacestead, space city or space colony) is a settlement in outer space, sustaining more extensively habitation...

A material is brittle if, when subjected to stress, it fractures with little elastic deformation and without significant plastic deformation. Brittle materials...

Artificial gravity is the creation of an inertial force that mimics the effects of a gravitational force, usually by rotation. Artificial gravity, or rotational...

Teléfonos de México, S.A.B. de C.V., known as Telmex is a Mexican telecommunications company headquartered in Mexico City that provides telecommunications...

The Lockheed Martin X-33 was a proposed uncrewed, sub-scale technology demonstrator suborbital spaceplane that was developed for a period in the 1990s...

STS-108 was a Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle Endeavour. Its primary objective was to deliver supplies...

Virtual PC is a discontinued x86 emulator for PowerPC Mac hosts and a hypervisor for Microsoft Windows hosts. It was created by Connectix in 1997 and acquired...

Splashdown is the method of landing a spacecraft in a body of water, usually by parachute. The method has been used primarily by American crewed capsules...

Code::Blocks is a free, open-source, cross-platform IDE that supports multiple compilers including GCC, Clang and Visual C++. It is developed in C++ using...

The canvas element is part of HTML5 and allows for dynamic, scriptable rendering of 2D shapes and bitmap images. It is a low level, procedural model that...