 | William Gifford, Sir John Taylor Coleridge, John Gibson Lockhart, Whitwell Elwin, William Macpherson, William Smith, Sir John Murray (IV), Rowland Edmund Prothero (Baron Ernle) - English literature - 1827 - 624 pages
...the 'foundation of all legal weights and measures ; and that it be declared that the length of the pendulum, vibrating seconds in a 'vacuum 'at the level of the sea, in London, is 39.13929 inches, and that of the French metre 39.37079 inches ; the English standard being... | |
 | Alexander Ingram - Mathematics - 1830 - 458 pages
...pair of sights fixed on a pole, at right angles to one another. Its use is to deter* The length of the pendulum vibrating seconds in a vacuum at the level of the sea in tbe latitude of London, is 39*1393 imperial i)ii* • 23 times the length of this pendulum comes to... | |
 | Arithmetic - 1843 - 142 pages
...troy grain ; 7j carats of 30 diamond grains make a pennyweight troy, and 150 carats make a troy ounce. vacuum at the level of the sea, in the latitude of London, is = 39- 1393 inches. An inch is sometimes divided into 8 and 16, and also into 10 parts ; a fathom... | |
 | American Academy of Arts and Sciences - Humanities - 1880 - 436 pages
...proposed as the basis of a standard of length, as follows : — I." The length of a pendulum beating seconds in a vacuum at the level of the sea in the latitude of London. II. One ten-millionth part of a quadrant of the earth's surface. III. The length of a wave of light... | |
 | Alexander Ingram - 1851 - 202 pages
...the enclosures. The CROSS consists of two pair of sights fixed on a pole, at • The length of the pendulum vibrating seconds in a vacuum at the level of the sea in the latitude of London is 39-1393 inches; 23 times the length of this pendulum is = 900-204 inches ; and 25 yards = 900 inches;... | |
 | Institution of Mechanical Engineers (Great Britain) - Mechanical engineering - 1858 - 1332 pages
...measuring altogether about GOOO miles ; whilst the inch is derived from the length of a pendulum beating seconds in a vacuum at the level of the sea in the latitude of London, the length of which is not an exact number of inches, but 39'14 inches, or more accurately 39-13929... | |
 | James Yates - Decimal system - 1858 - 100 pages
...is the digit, which is one-sixty-fourth part of the length of a pendulum, oscillating in a second, in a vacuum, at the level of the sea, in the latitude of Greenwich." Mr. Jessop calculates, that 100,000 such digits would make a mile, being only about one-twenty-seventh... | |
 | William Newton - 1859 - 422 pages
...measuring altogether about 6000 miles ; whilst the inch is derived from the length of a pendulum beating seconds in a vacuum at the level of the sea in the latitude of London, the length of which is not an exact number of inches, but 39'14 inches, or more accurately 39113,929... | |
 | American Pharmaceutical Association - 1859 - 442 pages
...Fahrenheit,t) barometer standing at 30 inches ; the inch of this measurement being derived from the length of a pendulum vibrating seconds in a vacuum, at the level of the sea, — in Greenwich or London. Such a pendulum is divided into 39.1393 inches. Conformably to this system of... | |
 | American Pharmaceutical Association. Annual Meeting - Pharmaceutical industry - 1859 - 444 pages
...Fahrenheit,t) barometer standing at 30 inches ; the inch of this measurement being derived from the length of a pendulum vibrating seconds in a vacuum, at the level of the sea, — in Greenwich or London. Such a pendulum is divided into 39.1393 inches. Conformably to this system of... | |
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The length of a pendulum beating seconds in a vacuum at the level of the sea in the latitude of London. 
