 | 1843 - 142 Seiten
...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 - 1880 - 436 Seiten
...law. Three natural units have been 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 Seiten
...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;... | |
 | John Henry Alexander - 1857 - 180 Seiten
...CAPACITY. — 1 toende = 4 fjerding = 8 skieppe = 32 fjerdingkar = 144 pot. The Fod represents -Jf of the pendulum beating seconds, in a vacuum, at the level of the sea, under the mean parallel of 45° north latitude. ITINERARY.— 1 miil = 2400 rode = 4000 favn= 12000... | |
 | Institution of Mechanical Engineers (Great Britain) - 1858 - 1332 Seiten
...the earth's circumference from the equator to the pole, a distance measuring altogether about GOOO miles ; whilst the inch is derived from the length...number of inches, but 39'14 inches, or more accurately 39-13929 inches, say 39 inches and 139290 millionth parts. This superiority in the metre is however... | |
 | James Yates - 1858 - 100 Seiten
...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... | |
 | Edward Brooks - 1863 - 350 Seiten
...with the imperial yard of Great Britain, which is determined by dividing a pendulum, which vibrates seconds, in a vacuum, at the level of the sea, in the latitude of London, into 391393 equal-parts, and taking 860000 of these parts. * ~ II. The measures of length were first... | |
 | Robert C. Carrington - 1864 - 202 Seiten
...J to a degree . . 1,828 yards (= 1-0386 mues). COPENHAGEN,— Denmark. The Fod (foot) represents ^| of a pendulum beating seconds in a vacuum at the level of the sea, under the mean parallel of 45° lat. Length : Linie ...... 0-0858 inch. Tomme = 12 linie .... 1-0296... | |
 | John Fair Stoddard - 1888 - 480 Seiten
...English, EE NOTE. — 1. The length of the yard is determined by dividing a pendulum, Which vibratos seconds in a vacuum, at the level of the sea, in the latitude of London, into 391393 equal parts, and taking 360000 of these parts, equal in length to 36 inches. (627). 2.... | |
 | John Fair Stoddard - 1868 - 428 Seiten
...English, EE NOTE. — 1 . The length of the yard is determined by dividing a pendulum, which vibrates seconds in a vacuum, at the level of the sea, in the latitude of London, into 391393 equal parts, and taking 360000 of these parts, equal in length to 36 inches. 2. The Yard... | |
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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. 
