hydraulic hardware
21Videoconferencing — See also: List of video telecommunication services and product brands A Tandberg T3 high resolution telepresence room in use (2008) …
22Space Shuttle — STS redirects here. For other uses, see STS (disambiguation). This article is about the NASA Space Transportation System vehicle. For the associated NASA STS program, see Space Shuttle program. For other shuttles and aerospace vehicles, see… …
23Disc brake — Close up of a disc brake on a car On automobiles, disc brakes are often located with …
24Tractor — This article is about a vehicle used in agriculture or construction. For the power unit of a semi trailer truck (articulated lorry), see tractor unit. For other uses, see Tractor (disambiguation) …
25Computer network — Computer networks redirects here. For the periodical, see Computer Networks (journal). Datacom redirects here. For other uses, see Datacom (disambiguation). Internet map. The Internet is a global system of interconnected computer networks that… …
26Modem — For other uses, see Modem (disambiguation). A modem (modulator demodulator) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. The… …
27coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …
28aerospace industry — Introduction assemblage of manufacturing concerns that deal with vehicular flight within and beyond the Earth s atmosphere. (The term aerospace is derived from the words aeronautics and spaceflight.) The aerospace industry is engaged in the …
29Computing — For the formal concept of computation, see computation. For the magazine, see Computing (magazine). For the scientific journal, see Computing (journal). A difference engine: computing the solution to a polynomial function …
30Prosthesis — For other uses, see Prosthesis (disambiguation). Not to be confused with Orthotic. A man with two prosthetic arms playing table football …
