| 单词 | transit instrument |
| 例句 | Of or pertaining to the azimuth; in a horizontal circle. ÷ error of a transit instrument, its deviation in azimuth from the plane of the meridian. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z The dome contains an equatorial telescope, and the flank towers a transit instrument and mural circle. Guide to West Point, and the U.S. Military Academy 2012-03-20T02:00:14.607Z Some schools have transit instruments for the use of their classes in trigonometry. The Teaching of Geometry 2011-10-12T02:00:52.133Z The transit instrument is always reversed at least once in the course of an evening’s observing, the level being frequently read and recorded. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" 2011-09-19T02:00:10.473Z In the first plan which was tried, the reflector was used as a transit instrument. Photographs of Nebul? and Clusters Made with the Crossley Reflector 2011-06-21T02:00:27.500Z What a change have the telescope, the quadrant, and the transit instrument, aided by profound mathematics, and the talismanic power of the Newtonian theory of gravitation, produced! The Religion of Geology and Its Connected Sciences 2011-02-28T03:00:28.890Z He invented the transit instrument, mural circle, equatorial mounting for telescopes, and most of the other principal instruments now in use in observatories. Pioneers of Science Surveyors make use of this proposition when they wish, without using a transit instrument, to run one line parallel to another. The Teaching of Geometry 2011-10-12T02:00:52.133Z The transit instrument is also used in the prime vertical for the determination of latitudes. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" 2011-09-19T02:00:10.473Z The first plan is that of the "transit instrument," the second that of the "equatoreal." A Popular History of Astronomy During the Nineteenth Century Fourth Edition The microscopic deviation of the axis of a transit instrument from the horizontal position. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. We ran the base line up through Kanab and at the head of it pitched a small observatory tent over a stone foundation on which Prof, set up a large transit instrument for stellar observations. A Canyon Voyage The Narrative of the Second Powell Expedition down the Green-Colorado River from Wyoming, and the Explorations on Land, in the Years 1871 and 1872 Somehow the work of editing, explaining, and preparing for the press the new series of observations made by Yarnall and myself with our old transit instrument devolved on me. The Reminiscences of an Astronomer We now come to the consideration of the determination of time with the transit instrument. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" 2011-09-19T02:00:10.473Z But, on the 8th, a westerly wind caused a cloudless sky, which enabled us to place the transit instrument in the meridian, and to ascertain the variation of the compass, to be 27° 50' west. Narrative of a Journey to the Shores of the Polar Sea, in the Years 1819-20-21-22, Volume 1 It is the meridian that passes through the poles and the centre of the transit instrument of the Observatory of Greenwich. International Conference Held at Washington for the Purpose of Fixing a Prime Meridian and a Universal Day. October, 1884. Protocols of the Proceedings For the purpose of reading the scale we used a small bull's-eye lantern belonging to a transit instrument, and it threw out a long beam of light. A Canyon Voyage The Narrative of the Second Powell Expedition down the Green-Colorado River from Wyoming, and the Explorations on Land, in the Years 1871 and 1872 A coast survey observer had once let me look through his transit instrument and try to observe the passage of a star. The Reminiscences of an Astronomer The direction of the meridian is determined either by a theodolite or a portable transit instrument. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" 2011-09-19T02:00:10.473Z The western arm is a room of the same dimensions, intended for the transit instrument. The Uses of Astronomy An Oration Delivered at Albany on the 28th of July, 1856 And if they chose the Azores or Behring's Strait, in neither case could they mount a transit instrument or have a system of telegraphic communication. International Conference Held at Washington for the Purpose of Fixing a Prime Meridian and a Universal Day. October, 1884. Protocols of the Proceedings When the telescope is mounted on two pillars instead of the face of a wall, it is called a transit instrument. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work The transit instrument was at one end of the building and the mural circle, in charge of Professor Hubbard, at the other. The Reminiscences of an Astronomer He was also the inventor of the "chronometric governor," an apparatus which regulates the movements of the great transit instruments at Greenwich. Brave Men and Women Their Struggles, Failures, And Triumphs The transit instrument, the meridian circle, the mural circle, the heliometer, and the sextant, belong to this class. The Uses of Astronomy An Oration Delivered at Albany on the 28th of July, 1856 "That the Conference proposes to the Governments here represented the adoption of the meridian passing through the centre of the transit instrument at the Observatory of Greenwich as the initial meridian for longitude." International Conference Held at Washington for the Purpose of Fixing a Prime Meridian and a Universal Day. October, 1884. Protocols of the Proceedings Prodigious trouble has been taken to keep the time, and this object has been immensely helped by the telephone communication between the cavern, the transit instrument, and the interior of the hut. Scott's Last Expedition Volume I On the 30th of November a series of signals was commenced to be interchanged at night between the position of the transit instrument on Parks Hill and the highlands of the Aroostook. A Compilation of the Messages and Papers of the Presidents Volume 3, part 2: Martin Van Buren The only telescope erected in the establishment when he took it in charge was the transit instrument, and to this he vigorously devoted himself. The Project Gutenberg Encyclopedia Volume 1 of 28 The demands of astronomy, especially in regard to small minor planets, required a transit instrument and mural circle with a more powerful telescope. History of Astronomy Each has its separate building, and in the smaller building is a transit instrument. Maria Mitchell: Life, Letters, and Journals In 1721, however, he obtained a grant of 500 pounds from the Board of Ordnance, and accordingly a transit instrument was erected in the same year. Great Astronomers The transit instrument used by Captain Sabine was thirty inches in length, and the wires are stated to be equi-distant. Reflections on the Decline of Science in England There are three instruments; an excellent transit instrument of six and a half inches' aperture, resting on its y's of solid granite. Maria Mitchell: Life, Letters, and Journals In 1816 a new transit instrument, by Troughton, was added, and from this date the Greenwich star places have maintained the very highest accuracy. History of Astronomy He has also a fine transit instrument, and the admiral, being his near neighbor, has the privilege of using the observatory as his own. Maria Mitchell: Life, Letters, and Journals With Leverrier's bad English and my bad French we talked but little, but he showed me the transit instrument, the mural circle, the computing-room, and the private office. Maria Mitchell: Life, Letters, and Journals At that time, no original observations made at the transit instrument were ever preserved. Reflections on the Decline of Science in England M. Leverrier showed me the transit instrument and the mural circle. Maria Mitchell: Life, Letters, and Journals He has, like Mr. Airy, made the transit instrument incapable of mechanical change for its corrections of error, so that it depends for accuracy upon its faults being known and corrected in the computations. Maria Mitchell: Life, Letters, and Journals After their removal to the bank building there were added to these an "altitude and azimuth circle," loaned to Mr. Mitchell by West Point Academy, and two transit instruments. Maria Mitchell: Life, Letters, and Journals |
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