| 单词 | artificial horizon |
| 例句 | Ships got workable artificial horizons and so did aeroplanes. What do drones and GPS owe to a 1744 shipwreck? 2019-04-16T04:00:00Z The entire zone which defined the landscape of my life was now bounded by a continuous artificial horizon, formed by the raised parapets and embankments of the motorways and their access roads and interchanges. Sex and wheels: Zadie Smith on JG Ballard's Crash 2014-07-04T04:00:00Z The artificial horizon was then set up, and the flags and banners displayed, these fluttering out bravely before a S.W. wind, which latter, however, was decidedly cold and unpleasant. The Sea: Its Stirring Story of Adventure, Peril, & Heroism. Volume 3 2012-04-03T02:00:31.900Z His artificial horizon had been arranged but a short distance away. First at the North Pole Two Boys in the Arctic Circle 2012-02-27T03:00:16.033Z The natives were still with us; they seemed inquisitive and cunning; and shewed great surprise at a sextant and artificial horizon, by which they sat down, attentively watching what was done. Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle, between the years 1826 and 1836 Volume I. - Proceedings of the First Expedition, 1826-1830 2012-02-24T03:00:32.793Z Inspired by a child's spinning top toy, Serson wondered if he could create an artificial horizon - something that would stay level, even as a ship lurched and swayed around it. What do drones and GPS owe to a 1744 shipwreck? 2019-04-16T04:00:00Z A spinning top with a polished upper plane surface will provide an artificial horizon at sea, when the real horizon is obscured. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" 2011-12-26T03:00:11.613Z While referring to the aircraft’s artificial horizon as they struggled to keep its wings level, the copilots disregarded its indications that the jetliner was at a dangerous nose-up angle, the document says. Air France Crash Criminal Probe Shows Scope of Crew Errors 2011-10-06T08:58:04Z At sea, I would use the natural horizon, but that is impossible here amongst the ice and snow, and so I use an artificial horizon made of a pan of mercury. First at the North Pole Two Boys in the Arctic Circle 2012-02-27T03:00:16.033Z A small leaden tripod was used as a stand, whose upper surface was adjusted by a small spirit-level—or roughly by the trough of an artificial horizon, filled with mercury. Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle, between the years 1826 and 1836 Volume I. - Proceedings of the First Expedition, 1826-1830 2012-02-24T03:00:32.793Z Now the Indian knew nothing of artificial horizons and the aids to discovering where they are which strangers use. The Sea and the Jungle 2011-08-30T02:00:30.350Z In making such observations an artificial horizon must be used. My Attainment of the Pole 2011-08-05T02:00:54.720Z As a rule, therefore, in taking observations in the drift-ice, one has to use the artificial horizon or theodolite, if a very exact result is desired. Farthest North Being the Record of a Voyage of Exploration of the Ship 'Fram' 1893-1896 Mr. Kendall undertook to carry the sextant and azimuth-compass; and I took the artificial horizon and a package of paper for drying plants, besides which we each carried a blanket, gun, and ammunition. Narrative of a Second Expedition to the Shores of the Polar Sea The sextant and artificial horizon, lying on the ground, escaped destruction, and the dipping-needle had fortunately been taken on board. Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle, between the years 1826 and 1836 Volume I. - Proceedings of the First Expedition, 1826-1830 2012-02-24T03:00:32.793Z He tipped a lever, watched the artificial horizon tilt slightly. Sound of Terror But what about the image of the sun upon the artificial horizon? My Attainment of the Pole 2011-08-05T02:00:54.720Z The object in his hand was an artificial horizon, a mirror attached to the sextant which could be fixed at the exact angle of the horizon should the real horizon be obscured. The Harbor of Doubt Our stock consisted of two small sextants, two artificial horizons, two altitude instruments, a repeating circle for lunar observations, and a small transit telescope for ascertaining the rates of the chronometers. Narrative of a Second Expedition to the Shores of the Polar Sea Doolittle uses an "artificial horizon" on the small instrument which indicates longitudinal and lateral position in relation to the ground at all time. Astounding Stories of Super-Science April 1930 The latitude observed with an artificial horizon on shore, was 34º 22' 39" north; longitude by mean of two chronometers, agreeing nearly, 126º 2' 52" east. Account of a Voyage of Discovery to the West Coast of Corea, and the Great Loo-Choo Island Five or ten minutes before local noon the observer levels his artificial horizon and with sextant in hand lies down on the snow. My Attainment of the Pole 2011-08-05T02:00:54.720Z And if we were supposed to fly in anything but clear weather, we'd need a bank and turn indicator and an artificial horizon. Smugglers' Reef There were in my outfit three artificial horizons—one with mercury, the others constructed with a plate glass. An Explorer's Adventures in Tibet An ingenious instrument invented by Troughton, and intended to serve as an artificial horizon at sea; but it was found that its centrifugal force was incapable of counteracting the ordinary motion of a ship. 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. With an artificial horizon, indeed, the changes in refraction are not felt, because, at a considerable elevation above the horizon, the changes are very trifling. Account of a Voyage of Discovery to the West Coast of Corea, and the Great Loo-Choo Island I challenge any one to produce a clear cut image of the sun on an artificial horizon with the sun at that angle. My Attainment of the Pole 2011-08-05T02:00:54.720Z Preparatory to quitting their sledge, the men had loaded themselves with eight pounds of pemmican and two of biscuit, besides the artificial horizon, sextant, and compass, a rifle, and a boathook. The Ocean and its Wonders Before setting out for Wadi Gabeit we consumed for breakfast the artificial horizon that Captain Smyth had used for taking our latitude the night before. Southern Arabia Also, a name for quicksilver; the fluid metal so useful in the construction of the marine barometer, thermometer, and artificial horizon. 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. But it often happens in practice, that the artificial horizon cannot be used, and we are then reduced to the sea horizon, where the changes of refraction are always the greatest. Account of a Voyage of Discovery to the West Coast of Corea, and the Great Loo-Choo Island He had, besides, his chronometer, sextant, artificial horizon, and thermometers carried in cases, as also medicines, and the necessary clothing and other articles for himself. Great African Travellers From Mungo Park to Livingstone and Stanley The mercury trough of the artificial horizon is placed on top of the level box, and the mercury, which has been thoroughly warmed in the igloo, is poured into the trough until it is full. The North Pole Its Discovery in 1909 under the auspices of the Peary Arctic Club Mr. Allison at one o'clock this morning made an observation of Pollux from an artificial horizon, which made its altitude 85 degrees 36 minutes. Journal of Landsborough's Expedition from Carpentaria In search of Burke and Wills Measuring low angles by reflexion.--an ordinary artificial horizon is useless for very low angles. The Art of Travel Shifts and Contrivances Available in Wild Countries Maxwell sent to me to say that he meant to land on a point at some distance from the town, in order to observe the sun's meridian altitude with an artificial horizon. Account of a Voyage of Discovery to the West Coast of Corea, and the Great Loo-Choo Island His sextant, artificial horizon, thermometer, and compasses were carried apart. Great African Travellers From Mungo Park to Livingstone and Stanley E. The rates of the time keepers were found from morning's altitudes of the sun in an artificial horizon, between Feb. A Voyage to Terra Australis — Volume 2 The sun is too vertical for taking it with my sextant and artificial horizon. Journal of Landsborough's Expedition from Carpentaria In search of Burke and Wills The latitude of the north side of Kirkby Island, observed from an artificial horizon, was 34� 33' 1" south, and longitude by timekeepers, 136� 10' 8" east. A Voyage to Terra Australis — Volume 1 When the artificial horizon was arranged, the sultan and all his attendants had a peep at the sun, and the breach of etiquette which Clapperton had committed, seemed to be entirely forgotten. Lander's Travels The Travels of Richard Lander into the Interior of Africa He fixed, by means of an artificial horizon, its latitude to be 341 09 minutes S nine miles to the southward of Botany Bay. An Account of the English Colony in New South Wales, Volume 1 With Remarks on the Dispositions, Customs, Manners, Etc. of The Native Inhabitants of That Country. to Which Are Added, Some Particulars of New Zealand; Compiled, By Permission, From The Mss. of Lieutenant-Governor King. These errors and rates were found by lieutenant Flinders, from equal altitudes taken with a sextant on a stand, and using an artificial horizon of quicksilver. A Voyage to Terra Australis — Volume 2 When returning I found the trough for an artificial horizon washed upon the banks of the creek, this had been left with the sextant. Narrative of the Voyage of H.M.S. Rattlesnake, Commanded By the Late Captain Owen Stanley, R.N., F.R.S. Etc. During the Years 1846-1850. Including Discoveries and Surveys in New Guinea, the Louisiade Archipelago, Etc. to Which Is Added the Account of Mr. E.B. Kennedy's Expedition for the Exploration of the Cape York Peninsula. By John Macgillivray, F.R.G.S. Naturalist to the Expedition. — Volume 2 The latitude of the landing place near Kangaroo Head from an observation in the artificial horizon, was 35� 43' 0" south; and the longitude of our anchorage by timekeepers, 137� 58' 31" east. A Voyage to Terra Australis — Volume 1 Besides provisions for six days, and arms, we had with us the following instruments: large sextant, small sextant, artificial horizon, chronometer, two compasses, spyglass, watch, lantern, and measuring tape. Discoveries in Australia, Volume 2 Discoveries in Australia; with an Account of the Coasts and Rivers Explored and Surveyed During the Voyage of H.M.S. Beagle, in The Years 1837-38-39-40-41-42-43. By Command of the Lords Commissioners Of the Admiralty. Also a Narrative of Captain Owen Stanley's Visits To the Islands in the Arafura Sea Because of these high altitudes of the sun the sextant with artificial horizon could not be used unless one depended upon star observations altogether, an uncertain dependence because of the many cloudy nights. Through the Brazilian Wilderness I landed immediately, with the botanists; and at the south-east end of the island, which is a little elevated, took bearings and the meridian altitude of both limbs of the sun from an artificial horizon. A Voyage to Terra Australis — Volume 2 A modification of this was afterward used on the French Atlantic lines for making an artificial horizon to take observations for position at sea. Edison, His Life and Inventions The little round hills of a few hundred feet rolled gently away to the artificial horizon made by their closing in. The Mountains The instruments consisted of a sextant, artificial horizon, &c., a barometer, spy-glass, and compass. The Exploring Expedition to the Rocky Mountains, Oregon and California To which is Added a Description of the Physical Geography of California, with Recent Notices of the Gold Region from the Latest and Most Authentic Sources After the equinox the sun is too high to be measured by the sextant in the artificial horizon. Explorations in Australia The Journals of John McDouall Stuart June 18th, altitudes for the time with artificial horizon. The Journal of a Mission to the Interior of Africa, in the Year 1805 The stratum of mosquitos, which hovered over the ground, was so thick that I could not succeed in rectifying properly the artificial horizon. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 Carefully they spread lines of mercury for an artificial horizon, and painstakingly adjusting their instruments, began to take readings. Lost in the Air The instruments employed were an eight-inch sextant, box-sextant, prismatic compasses, pocket compasses, double axis compass, aneroid barometers, thermometers, and artificial horizon, etc. Journals of Australian Explorations The altitude was measured every hour by four men with the sextant and artificial horizon. The Great Events by Famous Historians, Volume 21 The Recent Days (1910-1914) Luckily they did not fancy my pocket sextant, and artificial horizon, which were in the same place. The Journal of a Mission to the Interior of Africa, in the Year 1805 It formed, as it were, a particular stratum some feet above the ground, and it thickened as we brought lights to illumine our artificial horizon. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 A thin skim of ice over the surface of the kerosene oil used for an artificial horizon has to be constantly removed by the warm breath of an assistant. Schwatka's Search I took the level of the ground with a lunette d'epreuve, on an artificial horizon, and found, that the dam had been constructed eight feet too low. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 In addition, we left there several pieces of clothing, a sextant, an artificial horizon, and a hypsometer. The Great Events by Famous Historians, Volume 21 The Recent Days (1910-1914) Unfortunately there was always drift at midday, so that it was impossible to get a latitude "shot" with a sextant and artificial horizon. The Home of the Blizzard Being the Story of the Australasian Antarctic Expedition, 1911-1914 The former have often served me for an artificial horizon; they reflect the image of the stars with admirable clearness. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 One glass plane artificial horizon, ordnance pattern: 4 pounds 4 shillings. Successful Exploration Through the Interior of Australia An accident happened to the vessel containing the mercury of the artificial horizon, by which the greater part was lost, leaving scarcely sufficient for use. Journals of Two Expeditions into the Interior of New South Wales Besides the cumbrous moneys, they carried several boxes of instruments, such as chronometers, air thermometers, sextant, and artificial horizon, boxes containing clothes, medicines, and personal necessaries. How I Found Livingstone; travels, adventures, and discoveres in Central Africa, including an account of four months' residence with Dr. Livingstone, by Henry M. Stanley Left canoe, sextant box, artificial horizon and my fishing- rod. Woman's Way Through Unknown Labrador The instruments we carried were two sextants and three artificial horizons -- two glass and one mercury -- a hypsometer for measuring heights, and one aneroid. The South Pole; an account of the Norwegian Antarctic expedition in the "Fram," 1910-12 — Volume 1 and Volume 2 There appear to be sheets of water within a few yards of one, and it looks sufficiently smooth and glassy to be used for an artificial horizon. Successful Exploration Through the Interior of Australia In addition to several minor articles of equipment, we decided to leave behind us the artificial horizon, the sextant box, and one of the axes. The Lure of the Labrador Wild The instruments provided for the journey consisted of two barometers, two thermometers, two compasses, a sextant, two chronometers, an artificial horizon, and an altazimuth, to throw out the height of distant and inaccessible objects. Five Weeks in a Balloon The instruments we carried were two sextants and three artificial horizons — two glass and one mercury — a hypsometer for measuring heights, and one aneroid. The South Pole; an account of the Norwegian antarctic expedition in the "Fram," 1910-1912 — Volume 2 E. de Beaumont measured the inclination with a sextant and artificial horizon, just as you take the height of the sun for latitude. More Letters of Charles Darwin — Volume 2 |
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