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Images of 'Triangulation' found, 84

Conceptual diagram of satellite triangulation
Ramsden's three foot geodetic theodolite, 1792
Switzerland Belts, 1952 (b/w photo)
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Spain / Al-andalus: An astrolabe made by Muhammad al-Naqqhash of Zaragoza, 1080 CE
An index chart
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Plan and section of surveying instrument, 1799
Triangulação, 1956 (oil on canvas)
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Triangulation, c 1606
Triangulation of perpendicular to meridian of Observatory, eastern part, pen drawing, 1734
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Plan of the Principal Triangulation of Britain, 1787-1790
Land-Surveying, 1983 (linocut)
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Surveying. Gemma Frisius's 1533 diagram demonstrating the (new) concept of triangulation. 1911 reproduction of a the 1533 original manuscript
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1859, U.S. Coast Survey Triangulation Map of the Florida Keys
1865, U.S. Coast Survey Triangulation Map of San Francisco Bay
Reiner Gemma Frisius, Libellus de locorum describendorum ratione, published as appendix to Cosmographia by Peter Apian, illustrated with wood carvings, 1533
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Triangulation of the Perpendicular to the Meridian of the Observatory, by Don Jean Picard, pen drawing, 1734
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Triangulation between Brussels, Antwerp, Ghent and Middelburg by Reiner Gemma Frisius, printed in Antwerp, 1533
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1857, U.S. Coast Survey Triangulation Map of Matagorda Bay to Galveston Bay, Texas
Boxstead. The draughtsman used Balsham Steeple and West Wickham Steeple at the top left of this plan as triangulation points. From these positions, he made angular observations with a theodolite to measure the height of the land and to plot individual topographical features. Pencil rays radiating from these two points record the measurement process
Faversham, Kent. 18th century map.
This is a plan of the Kentish flatlands surrounding Faversham, to the south of The Swale. Ruled red-ink lines radiating from observation stations and intersecting across the map, indicate angular measurements taken by the surveyor between fixed triangulation points. The irregularly shaped paper is so worn and torn that much of the detail is now erased.
Stow Market. This is a plan of the Gipping Valley in Suffolk. The circular hole in the top left-hand margin indicates that an 'Ordnance Office Copy' blind stamp has been removed from the manuscript. The die has cut through the paper causing the stamp to fall out. Pencil rays intersect across the map, evidence of measurements taken by the surveyor between fixed triangulation points
Light keeper's camp after a storm; South central Alaska 1923
Welford. This drawing depicts the boundary of Leicestershire and Northamptonshire. The county border is indicated at top left by a pecked line following the course of the River Avon. Relative relief is depicted by brushwork interlining ('hachuring') and ink wash. A section of the Watling Street is shown at bottom left. This Roman road ran from London to Wroxeter in Wales, via St. Albans and Leicester (where it intersected the Fosse Way, the Roman road from Exeter to Lincoln). Triangulation points and pencil rays used to plot the survey of the region are clearly visible at the top of the sheet
Halstow (Kent). Drawing showing the area around Halstow in Kent. This map is drawn on rectangular sheet lines, enclosed by a black border. Fields are coloured brown where cultivated, and green or blank if untilled. Marshland dominates this estuarine landscape and is depicted by symbols with three vertically inclined strokes above a short horizontal line. Stonework buildings or structures are drawn in red ink at settlements such as Iwade and Halstow at the centre of the plan. Ruled pencil rays intersect the map, evidence of angular measurements taken by the surveyor between fixed triangulation points. Altitudes ('spot heights') are measured and noted in red-ink figures
Merston, Kent. 18th century map.
This map is drawn on rectangular sheet lines, enclosed by a black border. Fields are coloured brown where cultivated, and green or blank if untilled. Stonework buildings or structures are drawn in red ink at the major settlement of Faversham, in the centre of the plan. Infilled or blocked areas of black or sepia ink depict structures or buildings made from more impermanent materials such as wood. The altitudes ('spot heights'), noted in red-ink figures, are plotted rather than estimated or sketched. Ruled pencil rays intersect across the map, evidence of measurements taken by the surveyor between fixed triangulation points.
Planispheric Astrolabe (copper or brass)
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Hills near Golconda and Hyderabad
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Portable transit instrument, 1799
'General View of the Instrument', 1799
The first Ramsden three-foot theodolite, 1790
The first great theodolite, c 1790
Locations used for surveying, 1799
The first Ramsden three-foot theodolite, 1790
Telescope used by General Roy, Hounslow Heath, Middlesex, 1784
Ramsden's three foot geodetic theodolite, 1792
Ramsden's three foot geodetic theodolite, 1792
Ramsden's three foot geodetic theodolite, 1792
Ramsden's three foot geodetic theodolite, 1792
Ramsden's 18 inch geodetic theodolite, 1790-1800
Ramsden's 18 inch geodetic theodolite, late 18th century
100 link steel and brass surveying chain, 1784
Two foot geodetic theodolite made by Troughton & Simms, 1828
The Board of Ordnance three-foot theodolite, 1858
Two foot geodetic theodolite made by Troughton & Simms, 1828
The Astrolabe
100 link steel surveying chain, 1784
100 link steel surveying chain, 1784
100 link steel surveying chain, 1784
100 link steel surveying chain, 1784
Satellites, Military, USA NAVSTAR satellite, 1986
Satellites, Military, USA NAVSTAR satellite, 1986
Plan of the base measurement on Hounslow Heath, Summer 1784
Colby's compensation bars, Ireland, 1827-1828
Cleave Collection 2: Survey of International Frontier between Uganda and Kenya, 1959-1960 (Part 5 of 5)
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Satellites, Military, USA NAVSTAR satellite, 1986
Colby's compensation bars, Ireland, 1827-1828
Colby's compensation bars, Ireland, 1827-1828
Meridians of the Royal Observatories of Greenwich and Paris, 1799
Cleave Collection 2: Survey of International Frontier between Uganda and Kenya, 1959-1960 (Part 1 of 5)
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Cleave Collection 2: Survey of International Frontier between Uganda and Kenya (Part 3 of 5)
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Cleave Collection 2: Survey of International Frontier between Uganda and Kenya (Part 4 of 5)
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Cleave Collection 2: Survey of International Frontier between Uganda and Kenya, 1959-1960 (Part 2 of 5)
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1864, U.S. Coast Survey Map or Trianguation Chart of New England