 | John Yeats - 1887 - 578 pagine
...instances, the most accurate scientific measurements with the best instruments were absolutely necessary. The length of a pendulum vibrating seconds in the latitude of London was found by Captain Kater to be 39-13929, when oscillating in vacua, at the temperature of 62° Fahr.,... | |
 | Royal Society (Great Britain) - 1905 - 642 pagine
...lightning. The Society took a very active part in the measurement of a degree of latitude, afterwards in the length of a pendulum vibrating seconds in the latitude of London, and in the comparison of the British Standards with the Linear Measure adopted in France. A committee... | |
 | Royal Society (Great Britain) - 1905 - 646 pagine
...lightning. The Society took a very active part in the measurement of a degree of latitude, afterwards in the length of a pendulum vibrating seconds in the latitude of London, and in the comparison of the British Standards with the Linear Measure adopted in France. A committee... | |
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It is determined, we find, as a certain fraction of the length of a pendulum vibrating seconds in the latitude of London. 
