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The length of a whip antenna is determined by the wavelength of the radio waves it is used with. Their length varies from compact electrically short antennas 1 / 10 wavelength long, up to 5 / 8 wavelength to improve directivity. The most common type is the quarter-wave whip, which is approximately 1 / 4 wavelength long.
Aerial photography (or airborne imagery) is the taking of photographs from an aircraft or other airborne platforms. [1] When taking motion pictures, ...
Google Earth is a web and computer program that renders a 3D representation of Earth based primarily on satellite imagery.The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles.
Common types of low-gain omnidirectional antennas are the whip antenna, "Rubber Ducky" antenna, ground plane antenna, vertically oriented dipole antenna, discone antenna, mast radiator, horizontal loop antenna (sometimes known colloquially as a 'circular aerial' because of the shape) and the halo antenna.
Earth from Above is a United Nations-supported ecological project conceived and led by Yann Arthus-Bertrand.The project includes a photo essay-style collection of aerial photography produced by Arthus-Bertrand, in which the photographer captured vistas of Earth from various aircraft during a ten-year period. [1]
The rubber ducky antenna (or rubber duck aerial) is an electrically short monopole antenna, invented by Richard B. Johnson, that functions somewhat like a base-loaded whip antenna. It consists of a springy wire in the shape of a narrow helix, sealed in a rubber or plastic jacket to protect the antenna. [1]
Aerial archaeology; Aerial image library; Aerial photograph interpretation (geology) Aerial photographic and satellite image interpretation; Aerial video; Aero Pictorial; Aerofilms; Air-to-air photography; Aircraft Operating Company; ARGUS-IS; Astrocam; Atmospheric correction
As he took the opportunity to make photographs during long-distance travel by plane over Western Australia for assignments, Woldendorp became especially known for his semi-abstract aerial colour photography, [9] which he exhibited as a professional artist in his first solo exhibition at David Foulkes Taylor's Triangle gallery in the Perth suburb of Crawley in 1964 and in a collaboration with ...