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Panopticon. This plan of Jeremy Bentham's panopticon prison was drawn by Willey Reveley in 1791. The panopticon is a design of institutional building with an inbuilt system of control, originated by the English philosopher and social theorist Jeremy Bentham in the 18th century. The concept is to allow all prisoners of an institution to be ...
Anchorage Air Route Traffic Control Center. Atlanta Air Route Traffic Control Center. Boston Air Route Traffic Control Center. Chicago Air Route Traffic Control Center. Cleveland Air Route Traffic Control Center. Denver Air Route Traffic Control Center. Fort Worth Air Route Traffic Control Center.
Definition of architecture or building (under 17 U.S. Code, Sec. 101) Humanly habitable structures that are intended to be both permanent and stationary, such as houses and office buildings, and other permanent and stationary structures designed for human occupancy, including but not limited to churches, museums, gazebos, and garden pavilions.
Smog tower. Smog towers or smog free towers (see below for other names) are structures designed as large-scale air purifiers to reduce air pollution particles ( smog ). This approach to the problem of urban air pollution involves air filtration, and removal of suspended mechanical particulates such as soot, and requires energy or power.
Remote radio head. A remote radio head (RRH), also called a remote radio unit (RRU) in wireless networks, is a remote radio transceiver that connects to an operator radio control panel via electrical or wireless interface. When used to describe aircraft radio cockpit radio systems, the control panel is often called the radio head .
For the complicated iconography, see Hortus Conclusus. An ivory tower is a metaphorical place—or an atmosphere—where people are happily cut off from the rest of the world in favor of their own pursuits, usually mental and esoteric ones. From the 19th century, it has been used to designate an environment of intellectual pursuit disconnected ...
The airspace class designation is in effect only during the hours of tower and approach operation at the primary airport; the airspace reverts to Class D if approach control is not operating, and to class E or G if the tower is closed. The vertical boundary is usually 4,000 feet (1,200 m) above the airport surface.
Centralized traffic control ( CTC) is a form of railway signalling that originated in North America. CTC consolidates train routing decisions that were previously carried out by local signal operators or the train crews themselves. The system consists of a centralized train dispatcher 's office that controls railroad interlockings and traffic ...