Our Atlantic Attempt
Our Atlantic Attempt
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In our eReader you can find the full English version of the book. Read Our Atlantic Attempt 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 Our Atlantic Attempt
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At night the Pole star is invaluable. If he were situated above the true North Pole his altitude would give the latitude ; actually he is not quite in this position, but apparently revolves round it. This involves a correction depending upon the sidereal time, which sometimes amounts to as much as about 70 miles, which has to be added or subtracted as the case may be. The height of the observer's eye above the horizon which is in use is required 86 OUR ATLANTIC ATTEMPT to be known. In order to ...ascertain drift it will not be necessary to come below the clouds as it would be in daytime, when there is only one heavenly body in sight.
For navigating purposes the moon is quite use- less as far as aeroplanes are concerned, owing to its great speed through the heavens, and to the numerous corrections which have to be made for this body. As I have pointed out, navigation is simply a system of computation depending primarily upon speed and compass and, secondly, upon corrections by observation.
What to read after Our Atlantic Attempt?
You can find similar books in the "Read Also" column, or choose other free books by H G Harry George Hawker to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
At night the Pole star is invaluable. If he were situated above the true North Pole his altitude would give the latitude ; actually he is not quite in this position, but apparently revolves round it. This involves a correction depending upon the sidereal time, which sometimes amounts to as much as about 70 miles, which has to be added or subtracted as the case may be. The height of the observer's eye above the horizon which is in use is required 86 OUR ATLANTIC ATTEMPT to be known. In order to ...ascertain drift it will not be necessary to come below the clouds as it would be in daytime, when there is only one heavenly body in sight.
For navigating purposes the moon is quite use- less as far as aeroplanes are concerned, owing to its great speed through the heavens, and to the numerous corrections which have to be made for this body. As I have pointed out, navigation is simply a system of computation depending primarily upon speed and compass and, secondly, upon corrections by observation.
What to read after Our Atlantic Attempt?
You can find similar books in the "Read Also" column, or choose other free books by H G Harry George Hawker to read onlineMoreLess
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