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Continuing Series
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Network corrected real-time is a technological approach to high precision GPS/ GNSS positioning that has been theorized about, studied, experimented with, and implemented in various academic, scientific, and commercial forms for nearly a decade. Many of the various approaches share the fruits of past research, algorithms, and technological tools; some which are in common.
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Jeff Lock

Jeff Lock draws on 30 years of experience in the restoration field to focus on colonial instruments from the 18th century and the techniques that were used for their construction. His continuing research has uncovered unusual instruments that will be discussed in detail in his forthcoming articles. He is currently working on a book titled The Art of Early Colonial Surveying Instruments.

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Thursday, 30 November 2006 The Art of Colonial Surveying Instruments Jeffrey Lock 232
Wednesday, 31 December 2003 Rowland Houghton's "Theodolate" Jeff Lock 270
 
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