 The telescope rests on a universal joint, placed on masonry, about 6 feet below the ground, and is elevated or depressed by a chain and windlass; and, although it weighs about 15 tons, the instrument is raised by two men with great facility. Of course,...  Tales about the sun, moon, and stars - Page 266by Peter Parley (pseud.) - 1862Full view - About this book
 | William Laxton - Architecture - 1845 - 564 pages
...rests, weigh about 15 tons. The telescope rests on an universal joint, placed on masonry about six feet below the ground, and is elevated or depressed...Of course, it is counterpoised in every direction. AV'hen completed its range will embrare an arc between 10 degrees of altitude towards the south and... | |
 | Thomas Dick - Astronomical instruments - 1845 - 644 pages
...speculum, including the bed on which the speculum rests, weigh about 15 tons. The telescope rests on an universal joint placed on masonry about 6 feet below...Of course, it is counterpoised in every direction. The observer when at work, stands in one of four galleries, the three highest of which are drawn out... | |
 | Thomas Dick - 1845 - 608 pages
...speculum, including the bed on which the speculum rests, weigh about 15 tons. The telescope rests on an universal joint placed on masonry about 6 feet below...Of course, it is counterpoised in every direction. The observer when at work, stands in one of four galleries, the three highest of which are drawn out... | |
 | Thomas Dick - Astronomical instruments - 1848 - 408 pages
...speculum rests, weigh about 15 tons. The telescope rests on a universal joint, placed on masonry about six feet below the ground, and is elevated or depressed...raised by two men with great facility : of course, it ia counterpoised in every direction. The observer, when at work, stands in one of four galleries, the... | |
 | Children's literature - 1849 - 274 pages
...tube is, at its centre, LOUD KOSSE'S MON8TE& TBLE8COFB. 7£ feet diameter, and at its extremities, 6£ feet. The telescope lies between two stone walls,...Of course, it is counterpoised in every direction. " The observer, when at work, stands in one of four galleries, the three highest of which are drawn... | |
 | History - Children's literature - 1849 - 270 pages
...at the equator. The tube and speculum, including the bed on which the latter rests, weigh about ] s tons. " The telescope rests on a universal joint,...Of course, it is counterpoised in every direction. " The observer, when at work, stands in one of four galleries, the three highest of which are drawn... | |
 | Ormsby MacKnight Mitchel - Astronomy - 1851 - 366 pages
...feet below the ground, and it Is elevated and depressed by a chain and windlass; and though it weighs 15 tons, the instrument is raised by two men with...Of course it is counterpoised in every direction. The observer, when at work, stands in one of four galleries, the three highest of which are drawn out... | |
 | Ormsby MacKnight Mitchel - Astronomy - 1851 - 374 pages
...feet below the ground, and it is elevated and depressed by a chain and windlass ; and though it weighs 15 tons, the instrument is raised by two men with...Of course it is counterpoised in every direction. The observer, when at work, stands in one of four galleries, the three highest of which are drawn out... | |
 | Jabez Hogg - Physics - 1853 - 390 pages
...speculum, including the bed on which the latter rests, weigh about 15 tons. " The telescope rests on an universal joint, placed on masonry about 6 feet below...Of course, it is counterpoised in every direction. " The observer, when at work, stands in one of four galleries, the three highest of which are drawn... | |
 | Thomas Dick - Astronomical instruments - 1856 - 408 pages
...about six feet below the ground, and is elevated or depressed by a chain and wind' 33* APPENDIX. lass ; and although it weighs about 15 tons, the instrument...of course, it is counterpoised in every direction. The observer, when at work, stands in one of four galleries, the three highest of which are drawn out... | |
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