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221:, since it was relatively easy to use. By allowing the use of graphical methods rather than mathematical calculations, it could be used by those with less education than other instruments. The addition of a camera to the plane table, as was done from 1890 by
140:, site mapping, exploration mapping, coastal navigation mapping, and related disciplines to provide a solid and level surface on which to make field drawings, charts and maps. The early use of the name
261:. The base, a tripod, is designed to support the table over a specific point on land. By adjusting the length of the legs, one can bring the table level regardless of the roughness of the terrain.
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A plane table consists of a smooth table surface mounted on a sturdy base. The connection between the table top and the base permits one to level the table precisely, using
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A plane table with part of the surface cut away to show the mounting on the tripod. The mount allows the table to be levelled. On the table, the
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of the site can be directly recorded on the drawing as elevations. Distances to the objects can be measured directly or by the use of
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In use, a plane table is set over a point and brought to precise horizontal level. A drawing sheet is attached to the surface and an
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Sight line intersection mapping on a Level surface originating from a base line compiled into maps
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in the collection of the
Smithsonian National Museum of American History. This image shows the
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is used to sight objects of interest. The alidade, in modern examples of the instrument a
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mathematician, in 1610 with the first plane table, but this appears to be incorrect.
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362:, Bureau of Publications, Teachers College, Columbia University, 1947. page 228
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Recherches sur les instruments, les méthodes et le dessin topographiques
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A brief description was also added to the 1591 edition of Digge's
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reflected its simplicity and plainness rather than its flatness. "
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http://www.sciencemuseum.org.uk/objects/surveying/1933-7.aspx
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The earliest mention of a plane table dates to 1551 in
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191:. The first mention of the device in English was by
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319:Scientific Instruments 1500-1900, An Introduction
217:instrument compared to other devices such as the
198:Some have credited Johann Richter, also known as
209:The plane table became a popular instrument for
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333:. This is an updated version of his earlier
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116:Learn how and when to remove this message
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396:Vai, Gian Battista, Caldwell, W. G. E.
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148:" refers to the table being both flat
178:"Usage et description de l'holomètre"
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54:adding citations to reliable sources
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136:prior to 1830) is a device used in
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476:Historical scientific instruments
296:in the telescope of the alidade.
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414:, Paris, 1898-1902, two volumes
398:The Origins of Geology in Italy
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441:Telescopic Plane Table Alidade
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424:Surveying, Theory and Practice
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19:For the mountain, see
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200:Johannes Praetorius
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21:Plane Table
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154:horizontal
152:levelled (
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204:Nuremberg
195:in 1590.
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