configuration of the ground
121Air traffic control radar beacon system — The air traffic control radar beacon system (ATCRBS) is a system used in air traffic control (ATC) to enhance radar monitoring and separation of air traffic. ATCRBS assists ATC radars by acquiring information about the aircraft being monitored,… …
122History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …
123THEMIS — The THEMIS mission uses a constellation of five NASA satellites to study energy releases from Earth s magnetosphere known as substorms, magnetic phenomena that intensify auroras near Earth s poles. The name of the mission is an acronym for Time… …
124Lifting body — The lifting body is an aircraft configuration where the body itself produces lift. It is related to flying wing which is a wing without a conventional fuselage. A lifting body is a fuselage that generates lift without the shape of a typical thin… …
125Triathlon equipment — The special needs of triathlon competitions three stage races including swimming, cycling, and running in the same event have led to the development of a whole range of specialized clothing and equipment. Triathlon specific swim equipment Typical …
126River engineering — The Los Angeles River is extensively channelized with concrete embankments. River engineering is the process of planned human intervention in the course, characteristics or flow of a river with the intention of producing some defined benefit.… …
127Military engineering vehicle — The EBG combat engineering vehicle, based on the AMX 30 tank, is used by the engineers of the French Army for a variety of missions …
128de Havilland Canada — The de Havilland Aircraft of Canada Ltd. company was an aircraft manufacturer with facilities based in what is now the Downsview area of Toronto, Ontario, Canada. The original home of de Havilland Canada is now the home of the Canadian Air Space… …
