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- Borden_Base_Line abstract "The Borden Base Line is a historic survey line (7.42 miles, 39,009.73 feet (11,890.17 m) long) running north/south through Hatfield and South Deerfield, Massachusetts. It was completed in 1831, and is now on the List of historic civil engineering landmarks.The base line measurement was the first project of its kind undertaken in America, and essential for Massachusetts' pioneering Trigonometrical Survey, performed under chief engineer Robert Treat Paine. Its careful measurement was critical, since the accuracy of the whole triangulation network depended on it.The base line was measured with greater accuracy than previously possible by using a new measuring device invented by Simeon Borden, which employed a bi-metallic measuring instrument to provide constant readings despite temperature variations. His apparatus was 50 feet (15 m) long, enclosed in a tube, and employed with four compound microscopes.Borden was a highly competent engineer whose ability was widely recognized. Indeed, the entire project became generally known as the Borden Survey. He measured the base line with a nominal accuracy of better than one part in 5 million. As Professor A. D. Butterfield has written, "The work performed and results obtained far surpassed in magnitude and attainment of any previous work of this kind in America."It appears that the north end of the baseline lies just south of the intersection of today's Route 116 and Route 5 in South Deerfield, Massachusetts. According to the Valley Historians, the south end is still marked by a copper plug set into a boulder, located in the back yard of the house at 30 Bridge Street, Hatfield, Massachusetts.".
- Borden_Base_Line thumbnail Borden_Base_Line_-_Massachusetts_map,_1871.jpg?width=300.
- Borden_Base_Line wikiPageExternalLink index.mxml?lid=18&versionChecked=true.
- Borden_Base_Line wikiPageExternalLink ma_bor_baseline.htm.
- Borden_Base_Line wikiPageExternalLink BACHE1.htm.
- Borden_Base_Line wikiPageID "9511063".
- Borden_Base_Line wikiPageLength "2631".
- Borden_Base_Line wikiPageOutDegree "12".
- Borden_Base_Line wikiPageRevisionID "481611634".
- Borden_Base_Line wikiPageWikiLink Category:Geography_of_the_United_States.
- Borden_Base_Line wikiPageWikiLink Category:Historic_Civil_Engineering_Landmarks.
- Borden_Base_Line wikiPageWikiLink Category:Surveying.
- Borden_Base_Line wikiPageWikiLink Hatfield,_Massachusetts.
- Borden_Base_Line wikiPageWikiLink List_of_Historic_Civil_Engineering_Landmarks.
- Borden_Base_Line wikiPageWikiLink List_of_historic_civil_engineering_landmarks.
- Borden_Base_Line wikiPageWikiLink Simeon_Borden.
- Borden_Base_Line wikiPageWikiLink South_Deerfield,_Massachusetts.
- Borden_Base_Line wikiPageWikiLink Surveying.
- Borden_Base_Line wikiPageWikiLink File:Borden_Base_Line_-_Massachusetts_map,_1871.jpg.
- Borden_Base_Line wikiPageWikiLink File:Borden_Base_Line_Plaque,_South_Deerfield_MA.jpg.
- Borden_Base_Line wikiPageWikiLinkText "Borden Base Line".
- Borden_Base_Line hasPhotoCollection Borden_Base_Line.
- Borden_Base_Line wikiPageUsesTemplate Template:Convert.
- Borden_Base_Line subject Category:Geography_of_the_United_States.
- Borden_Base_Line subject Category:Historic_Civil_Engineering_Landmarks.
- Borden_Base_Line subject Category:Surveying.
- Borden_Base_Line hypernym Survey.
- Borden_Base_Line type Organisation.
- Borden_Base_Line comment "The Borden Base Line is a historic survey line (7.42 miles, 39,009.73 feet (11,890.17 m) long) running north/south through Hatfield and South Deerfield, Massachusetts. It was completed in 1831, and is now on the List of historic civil engineering landmarks.The base line measurement was the first project of its kind undertaken in America, and essential for Massachusetts' pioneering Trigonometrical Survey, performed under chief engineer Robert Treat Paine.".
- Borden_Base_Line label "Borden Base Line".
- Borden_Base_Line sameAs m.02ph7c7.
- Borden_Base_Line sameAs Q4944475.
- Borden_Base_Line sameAs Q4944475.
- Borden_Base_Line wasDerivedFrom Borden_Base_Line?oldid=481611634.
- Borden_Base_Line depiction Borden_Base_Line_-_Massachusetts_map,_1871.jpg.
- Borden_Base_Line isPrimaryTopicOf Borden_Base_Line.