Showing 3264 results

Subjects term Scope note Results
air transportation complexes (1)

Use for: air transportation complex, complexes, air transportation

  • Complexes containing facilities to accommodate people, functions, and vehicles having to do with air transportation.
transportation complexes (2)

Use for: transportation complex , complexes, transportation

  • Buildings or complexes providing transportation facilities or otherwise serving transportation needs.
  • Typically refers to large tracts of open, level land upon which runways, hangars, terminals, and other buildings have been constructed to allow for the takeoffs, landings, loading and unloading, and maintenance of aircraft. For smaller areas that have a runway but no or few additional facilities, see
aerial photography

Use for: air photography, aerophotography, airborne photography, photography, aerial , photography, air

  • Refers to the activity of taking photographs from aircraft. The term may also be used to refer to any photography from the air, including photographs obtained by cameras mounted on aircraft, rockets, or Earth-orbiting satellites and other spacecraft. The purpose of photography from airborne or spaceborne vehicles is generally to provide information on ground features for military and other reconnaissance, or to record the dimensional disposition of such features for surveying or mapmaking. To refer specifically only to photography taken from beyond the Earth's atmosphere, use
trains (vehicle groupings)

Use for: railroad trains, railway trains , trains, railroad, trains, railway

  • Two or more rail transit vehicles physically connected and operated as a unit.
railroad cars
  • Vehicles adapted to the rails of railroads and used to carry passengers, freight, or mail or used for track and roadbed maintenance.
rail guideway vehicles (1)
  • Guideway vehicles that specifically operate on rails.
railroads (infrastructure)
  • Transit systems consisting of roads laid with rails forming tracks on which locomotives and cars are run for the transportation of passengers, freight, and mail.
transit systems (infrastructure) (1) 0
light rail transit

Use for: light-rail, light-rail transit systems

  • Designates rail systems operating on private but not necessarily exclusive right of way, at street level or grade separated, generally on electric power, at medium speeds (10-30 miles per hour), and generally making frequent stops at low platforms or directly at grade-level stations.
rail transit systems (1)

Use for: rail transit system, fixed-guideway transit, rail transit, systems, rail transit , transit, fixed-guideway, transit, rail , transit systems, rail, railway systems, railway system, systems, railway

cable railroads

Use for: Railroads, Cable

  • Light rail transit in which railroad-type vehicles are pulled by a moving continuous cable or belt, usually located beneath the railway.
arch bridges
  • Bridges in which the main supporting elements are arches.
transportation structures (2)
  • Structures of any kind that serve the transportation and transport of goods and passengers.
bridges (built works) (1) 29
advanced photo system

Use for: APS

  • Advanced Photo System (APS) is a discontinued film format for still photography first produced in 1996. It was marketed by Eastman Kodak under the brand name Advantix, by FujiFilm under the name Nexia, by Agfa under the name Futura and by Konica as Centuria.

Use for: anaglyph

  • Stereoscopic photographs in which the two images are in contrasting colors and produce a three-dimensional effect when viewed through colored filters.
half stereographs

Use for: half stereograph, stereographs, half, half stereos, one-half stereographs

  • Photographs originally taken as one of a pair of stereoscopic photographs but then printed or mounted as a single image.
stereoscopic photographs (5)
  • Refers to double pictures of the same scene that produce the effect of three dimensionality when viewed through a stereoscope. They were first envisioned in 1832 by the English physicist Charles Wheatstone, who described this as a uniquely photographic art form, since a draftsman could not draw two scenes in exact perspective from viewpoints separated only 2 1/2 inches, which is the normal distance between human eyes necessary for the three-dimensional effect. Wheatstone's mirror stereoscope was not practical for use with photographs, and the invention was not popular until the 1850s, when Sir David Brewster, a Scottish scientist, designed a simpler viewing instrument. The introduction of the collodion process, which simplified exposure and printing techniques, allowed three-dimensional photographs to become a popular craze. They may be daguerreotypes, negatives, or other forms of photographs. For images in the form of photographic prints on cards, use the more specific term
stereographs (4)

Use for: stereograms, stereoviews, stereo photographs, stereograms, stereograph, card stereographs, stereo cards, stereocards

  • Refers to the most popular and common form of stereoscopic photographs, which are double photographs of the same image taken from two slightly different perspectives. Stereographs are distinctive among other stereoscopic photographs because they are photographic prints mounted on cards, while other types could be daguerreotypes, negatives, or unmounted prints. From 1856 they were produced with twin-lens cameras, creating a three dimensional effect when viewed through a stereoscope. Stereographs were especially popular during the Victorian period.
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