difference of longitude造句
例句與造句
- The observatory organized many expeditions for determining differences of longitudes, observing passages of Venus and solar eclipses, and studying astroclimate.
- He made observations on the differences of longitude by means of moon-culminations, made meteorological observations and worked on new instruments.
- If then the differences of longitude and latitude between the first and second places are known, the direction and the distance can be found.
- In November 1913 the Paris Observatory, using the Eiffel Tower as an Arlington, Virginia to determine the exact difference of longitude between the two institutions.
- Similar principles were applied on 10 12 August 1847, to calculate the difference of longitude between Markree and Killiney, ninety-eight miles away in County Dublin.
- It's difficult to find difference of longitude in a sentence. 用difference of longitude造句挺難的
- In 1825 he and fellow-astronomer Sir John Herschel collaborated with a French government commission to determine the precise difference of longitude between the observatories of Paris and Greenwich.
- The surface of the wall in Scotland would be parallel with the horizontal ground in Australia ( ignoring the difference of longitude ), so the sundial would work identically on both surfaces.
- In November 1913, the Paris Observatory, using the Eiffel Tower as an antenna, exchanged sustained wireless ( radio ) signals with the United States Naval Observatory to determine the exact difference of longitude between the two institutions.
- He originated in 1861 the electrically controlled time service of Glasgow, and co-operated with Sir George Biddell Airy in 1865 in determining, by means of galvanic signals, the difference of longitude between Glasgow and Greenwich.
- In 1847 he took charge of the longitude department of the United States Coast Survey, where he was among the first to make use of the electric telegraph for the purpose of determining the difference of longitude between two stations, and he introduced the method of registering transit observations electrically by means of a chronograph.
- First the direction if, after the position of the second place has been fixed according to the differences of longitude and latitude, the thread be stretched from the centre of the rose so as to lie equidistant from the two places; all parallel lines drawn on the diagram are, in fact, lines of the same direction.
- "Of the Difference of Longitudes found by Chronometer, and by correspondent Eclipses of the Satellites of Jupiter, with some supplementary Information relative to Madras, Bombay, and Canton; as also the Latitude and Longitude of Point de Galle and the Friar's Hood . " Philosophical Transactions of the Royal Society 112 ( 1822 ) : 431-36.
- If the direction of the second place be known, together with its difference either of longitude or of latitude from the first, the thread should be stretched in this direction and, the compasses being moved along it starting from the first place, the line parallel thereto can be imagined; this line, as soon as it reaches a point at the known difference of longitude or latitude, will give the distance by the method set forth in another frame.
- It is for these reasons that we have progressively increased the degrees of latitude towards each pole in proportion to the lengthening of the parallels with reference to the equator; thanks to this device we have obtained that, however two, three or even more than three, places be inserted, provided that of these four quantities : difference of longitude, difference of latitude, distance and direction, any two be observed for each place associated with another, all will be correct in the association of any one place with any other place whatsoever and no trace will anywhere be found of any of those errors which must necessarily be encountered on the ordinary charts of shipmasters, errors of all sorts, particularly in high latitudes.