|
Aerospace Wales
Aerospace is a term used to collectively refer to the atmosphere and outer space. Aerospace activity is very diverse, with a multitude of commercial, industrial and military applications. Aerospace engineering consists of aeronautics and astronautics. Aerospace organizations research, design, manufacture, operate, or maintain both aircraft and spacecraft. The beginning of space and the ending of the air is considered as 100 km (62 mi) above the ground according to the physical explanation that the air pressure is too low for a lifting body to generate meaningful lift force without exceeding orbital velocity. Overview In most industrial countries, the aerospace industry is a cooperation of the public and private sectors. For example, several states have a civilian space program funded by the government, such as National Aeronautics and Space Administration in the United States, European Space Agency in Europe, the Canadian Space Agency in Canada, Indian Space Research ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Top Of Atmosphere
A spinning top, or simply a top, is a toy with a squat body and a sharp point at the bottom, designed to be spun on its vertical axis, balancing on the tip due to the gyroscopic effect. Once set in motion, a top will usually wobble for a few seconds, spin upright for a while, then start to wobble again with increasing amplitude as it loses energy, and finally tip over and roll on its side. Tops exist in many variations and materials, chiefly wood, metal, and plastic, often with a metal tip. They may be set in motion by twirling a handle with the fingers, by pulling a rope coiled around the body, or by means of a built-in auger (spiral plunger). Such toys have been used since antiquity in solitary or competitive games, where each player tries to keep one's top spinning for as long as possible, or achieve some other goal. Some tops have faceted bodies with symbols or inscriptions, and are used like dice to inject randomness into games, or for divination and ritual purposes. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space And Upper Atmosphere Research Commission
The Space & Upper Atmosphere Research Commission (SUPARCO) ( ur, ) is the executive and national space agency of Pakistan. It is headquartered at the capital city of Islamabad in the northern part of Pakistan with additional facilities at the University of Punjab in Lahore. Established in 1961 to assist development of space science and research in Pakistan, agency started to function only in 1964. It started to import and launch sounding rockets in the early 1960s and attained capability to fabricate rocket engines. However, the agency kept a low profile for the initial 30–35 years of its existence with limited progress in field of research and its progress in satellite technology also started relatively late. The country's first satellite, ''Badr-I'', was built by the SUPARCO and launched from the Xichang Satellite Launch Center, China on July 16, 1990, which provided Pakistani scientists with valuable experience in telemetry and other satellite technologies. SUPARCO pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Cayley
Sir George Cayley, 6th Baronet (27 December 1773 – 15 December 1857) was an English engineer, inventor, and aviator. He is one of the most important people in the history of aeronautics. Many consider him to be the first true scientific aerial investigator and the first person to understand the underlying principles and forces of flight and the first man to create the wire wheel. * * * In 1799, he set forth the concept of the modern aeroplane as a fixed-wing flying machine with separate systems for lift, propulsion, and control. He was a pioneer of aeronautical engineering and is sometimes referred to as "the father of aviation." He identified the four forces which act on a heavier-than-air flying vehicle: weight, lift, drag and thrust. Modern aeroplane design is based on those discoveries and on the importance of cambered wings, also proposed by Cayley. He constructed the first flying model aeroplane and also diagrammed the elements of vertical flight. He also designed the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
