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It is done for each independent observation to bring the image of the object in the plane of cross hairs. It includes following steps of operation: First, direct the telescope towards the object for observation. Next, turn the focusing screw until the image of the object appears clear and sharp as the observer looks through properly focused eye ...
A theodolite (/ θ i ˈ ɒ d ə ˌ l aɪ t /) [1] is a precision optical instrument for measuring angles between designated visible points in the horizontal and vertical planes. The traditional use has been for land surveying , but it is also used extensively for building and infrastructure construction , and some specialized applications such ...
On the table, the alidade with telescopic sight is seen. 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 bubble levels, in a horizontal plane. The base, a tripod, is designed to support the table over a specific point on ...
Modern automatic level in use on a construction site. A level is an optical instrument used to establish or verify points in the same horizontal plane in a process known as levelling. It is used in conjunction with a levelling staff to establish the relative height or levels (the vertical separation) of objects or marks.
The Pennsylvania parents of a 21-year-old blind and deaf man with cerebral palsy who died in September after being starved for months have been charged in connection to his death, authorities ...
Buzbee revealed that Carter was the anonymous celebrity who sued him in November after he sent the rapper a demand letter asking to privately mediate.
The temporary adjustment allows eligible loan borrowers to use past periods of repayment (and even some periods of deferment and forbearance) toward their 20-year and 25-year IDR loan forgiveness ...
Table of Surveying, 1728 Cyclopaedia. Abel Foullon described a plane table in 1551, but it is thought that the instrument was in use earlier as his description is of a developed instrument. Gunter's chain was introduced in 1620 by English mathematician Edmund Gunter. It enabled plots of land to be accurately surveyed and plotted for legal and ...