...would give'a'result almost exactly the same. 280. The English Government have taken as their standard the length of the pendulum vibrating seconds in the latitude of London, at the level of the sea, and in a perfect vacuum ; and to ascertain this, a series of very ingenious...

...and distances of the heavenly bodies. The length of the pendulum vibrating seconds of mean solar time in the latitude of London, forms the standard of the British measure of extension. Its approximate length oscillating in vacuo at the temperature of 62° of Fahrenheit, and reduced to the...

...distances of the heavenly bodies. The length of the pendulum vibrating seconds of mean solar time, in the latitude of London, forms the standard of the British measure of extension. Its approximate length oscillating in vacuo at the temperature of 62° of Fahrenheit, and reduced to the...

...— ; read — rzz z No. XXVII. APPENDIX TO CAPTAIN RATER'S ACCOUNT OF EXPERIMENTS FOR DETERMINING THE LENGTH OF THE PENDULUM VIBRATING SECONDS IN THE LATITUDE OF LONDON.* From the Philosophical Transactions for 1818, p. 95. MY DEAR SIR, I CANNOT forbear to congratulate...

...-Woolaston, Young, and Kater, to consider the subject of English weights and measures ; to determine the length of the pendulum vibrating seconds in the latitude of London ; and to settle the proportion between the long measures of England and France. In the first Eeport,...

...Researches," Vols. VIII. X. and XII. Vol. XXX. p. 407. " An Account of Experiments for determining the Length of the Pendulum vibrating Seconds in the Latitude of London." By Capt. Henry Kater, FRS From the Phil. Trans. London, 1818. The four articles, above referred to,...

...square of the radius of a circle : square of the semicircumference ; or, as 2 : 9.916, or 1 : 4.953. The length of the pendulum vibrating seconds in the latitude of London is 39.1393 inches, whence in one second a heavy body falls 16.155 feet. The length of a pendulum vibrating...

...establishing their mutual relations, is thus described: — "The contents of the cube of the sixth part of the length of the pendulum vibrating seconds in the latitude of London, at the level of the sea, and in a vacunm (which has been the element for establishing linear measure),...

...VIII. p. 1 ff. ' H. KATER Phil. Trans. 1818. Parti. S. 33. An account^f experiments for determining the length of the pendulum vibrating seconds in the latitude of London. SABINE Phil. Trans. 1831. Part HS 4Ö9. Experiments on the length of the seconds pendulum at the Royal...

...warranted in taking 39.38 English as the length of the French platina standard metre, and 39.14 as the length of the pendulum vibrating seconds in the latitude of London. And if the attempt at a minuter decimal fraction than that of the 100th part of an inch in the making...