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Engineering is the creative application of science, mathematical methods, and empirical evidence to the innovation, design, construction, operation and maintenance of structures, machines, materials, devices, systems, processes, and organizations for the benefit of humankind. The discipline of engineering encompasses a broad range of more specialized fields of engineering, each with a more specific emphasis on particular areas of applied mathematics, applied science, and types of application. See glossary of engineering.
The term engineering is derived from the Latin ingenium, meaning "cleverness" and ingeniare, meaning "to contrive, devise".
|Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing fusion, which is distinct from lower temperature metal-joining techniques such as brazing and soldering, which do not melt the base metal. In addition to melting the base metal, a filler material is often added to the joint to form a pool of molten material (the weld pool) that cools to form a joint that can be as strong, or even stronger, than the base material. Pressure may also be used in conjunction with heat, or by itself, to produce a weld.
Although less common, there are also solid state welding processes such as friction welding or shielded active gas welding in which metal does not melt.
The Beijing National Aquatics Center, also known as the Water Cube, is an aquatics centre that was built alongside Beijing National Stadium in the Olympic Green for the 2008 Summer Olympics. Ground was broken on December 24, 2003. The Aquatics Centre hosted the swimming, diving, synchronized swimming and water polo events during the Olympics. It had a capacity of 17,000 during the games that has been reduced to 6,000. It also has a total land surface of 65,000 square metres.
- ... that the first automobile powered by an internal combustion engine was built in 1807?
- ... that any temperature difference will power a Stirling engine?
- ... that a Floppy Disk Controller is a special-purpose chip and associated circuitry that directs and controls reading from and writing to a computer's floppy disk drive?
- ... that a drillship is a maritime vessel that has been fitted with drilling apparatus?
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