The Figure of the Earth
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In our eReader you can find the full English version of the book. Read The Figure of the Earth Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Figure of the Earth
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This is called the determination of the azimuth, and in principle is as follows a temporary mark is fixed as near as possible to the meridian ; a transit in- strument is adjusted upon it, and the transits of stars at different polar dis- 61 tances are observed. The deviation of the transit instrument, or the azimuth of the mark, is thus found with great accu- racy. By means of a theodolite or re- peating circle, the angle between the mark and one of the signals can be ob- served, and there resu...lts the azimuth of the station.
This having been satisfactorily per- formed, we are now able to calculate the length of meridian arc contained between the two parallels passing through the ex treme stations of the chain of triangles. The simplest means "for performing this operation is known as the method of parallels and perpendiculars, and consists mainly in finding the projections upon the meridian of the various sides of the system of triangles. Only one precaution is ne- cessary, and that is.
What to read after The Figure of the Earth?
You can find similar books in the "Read Also" column, or choose other free books by Frank Calvin Roberts to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
This is called the determination of the azimuth, and in principle is as follows a temporary mark is fixed as near as possible to the meridian ; a transit in- strument is adjusted upon it, and the transits of stars at different polar dis- 61 tances are observed. The deviation of the transit instrument, or the azimuth of the mark, is thus found with great accu- racy. By means of a theodolite or re- peating circle, the angle between the mark and one of the signals can be ob- served, and there resu...lts the azimuth of the station.
This having been satisfactorily per- formed, we are now able to calculate the length of meridian arc contained between the two parallels passing through the ex treme stations of the chain of triangles. The simplest means "for performing this operation is known as the method of parallels and perpendiculars, and consists mainly in finding the projections upon the meridian of the various sides of the system of triangles. Only one precaution is ne- cessary, and that is.
What to read after The Figure of the Earth?
You can find similar books in the "Read Also" column, or choose other free books by Frank Calvin Roberts to read onlineMoreLess
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