| Charles Hutton - 1807
...ear. What is the depth of the well ? Ans. 1270 feet nearly. QUEST. 47. It is proposed to determine **the length of a pendulum vibrating seconds, in the latitude of London,** where a heavy body falls through 1 6-jIj- feet in the first second «f time ? , Ans. 39'1 1 inches.... | |
| Charles Hutton - 1811
...ear. What is the depth of the well ? Ans. 1 270 feet nearly. QUEST. 47. It is proposed to determine **the length of a pendulum vibrating seconds, in the latitude of London,** where a heavy body falls through 16^ feet in the first second of time ? Ans. 39-1 1 inches. By experiment... | |
| Abraham John Valpy - 1817
...parts, and a certain ratio between the whole and these parts j.cvcraUy, is established. Let us take **the length of a pendulum, vibrating seconds in the latitude of London,** which is 39,126 inches. For the sake, however, of simplifying the illustration, let the length be supposed... | |
| William Nicholson - 1821
...whole numbers. To explain our philosopher's intentions more fully, let us admit the supposition, that **the length of a pendulum vibrating seconds in the latitude of London** is 39.2 inches ; the length of one vibra'ing 42 times in a minute amounts to 80 inches ; by the same... | |
| William Nicholson - 1821
...whole numbers. To explain our philosopher's intentions more fully, let us admit the supposition, that **the length of a pendulum vibrating seconds in the latitude of London** is 39.2 inches ; the length of one vibrating 42 times in a minute amounts to 80 inches; by the same... | |
| United States. Department of State, John Quincy Adams - 1821 - 245 頁
...1814, the committee of the house of commons resolved, and, in 1815, the house itself enacted, that **the length of a pendulum vibrating seconds, in the latitude of London,** had been ascertained to be 39.13047 inches of Bird's parliamentary standard yard. In the year 1818,... | |
| 1825
...author of a variety of excellent papers, among which are, " An Account of Experiments for determining **the length of a Pendulum Vibrating Seconds in the Latitude of London** ;" " Description of a New Compensation Pendulum;" "Description of a very Sensible Hygrometer;" "On... | |
| ...clocks require to he regulated accordingly of the oscillation shall be accurately the same in all. **The length of a pendulum vibrating seconds in the latitude of London,** 51° 31/1, in a vacuum at the level of the sea, is 39,13929 inchesTaking these common divisions of... | |
| Society for the Diffusion of Useful Knowledge (Great Britain) - 1834
...but they may be so adjusted that the period of the oscillation shall be accurately the same in all. **The length of a pendulum vibrating seconds in the latitude of London,** 51° 31.'1, in a vacuum at the level of the sea, is 39,13929 inches. Taking these common divisions... | |
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