Philosophical Transactions of the Royal Society of London, Volume 108W. Bowyer and J. Nichols for Lockyer Davis, printer to the Royal Society, 1818 |
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Pagina 44
... observations must not be continued beyond a certain diminution of the arc of vibration , otherwise the space , which the pendulum of the clock has to gain on the brass pendulum in one vibration , becomes so small as to render the ...
... observations must not be continued beyond a certain diminution of the arc of vibration , otherwise the space , which the pendulum of the clock has to gain on the brass pendulum in one vibration , becomes so small as to render the ...
Pagina 45
... observations to be continued with safety . With this interval an error of one second in the time of coin- cidence would occasion an error of only 0,63 in the number of vibrations in 24 hours . Here it must be evident that no sensible ...
... observations to be continued with safety . With this interval an error of one second in the time of coin- cidence would occasion an error of only 0,63 in the number of vibrations in 24 hours . Here it must be evident that no sensible ...
Pagina 54
... of these last and the mean result , did not amount to four divisions of the micrometer . The mean of the first set of observations ex- The standard yard made by BIRD in 1758 , for 54 Capt . KATER's experiments for determining the.
... of these last and the mean result , did not amount to four divisions of the micrometer . The mean of the first set of observations ex- The standard yard made by BIRD in 1758 , for 54 Capt . KATER's experiments for determining the.
Pagina 57
... observations , the greatest difference between which did not exceed one division , was found to be 329,09 divisions . The same was done with the pieces B. and b , and the dis- tance of the lines from a mean of sixteen observations ap ...
... observations , the greatest difference between which did not exceed one division , was found to be 329,09 divisions . The same was done with the pieces B. and b , and the dis- tance of the lines from a mean of sixteen observations ap ...
Pagina 93
... observation being 51 ° 31 ′ 8 ′′ , 4 north . * inches . 39,13860 39,13717 39,13842 • The latitude was deduced from the data ... observations . - An objection might be urged against the use of the length of the pendulum vibrating seconds . 93.
... observation being 51 ° 31 ′ 8 ′′ , 4 north . * inches . 39,13860 39,13717 39,13842 • The latitude was deduced from the data ... observations . - An objection might be urged against the use of the length of the pendulum vibrating seconds . 93.
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Veelvoorkomende woorden en zinsdelen
20 feet telescope 24 hours ammonia angle appear Aquila ascertained axes axis Azimuth Barom barometer barytes BIOT blood bones calcareous spar carbonate centre chlorine Clock cluster of stars coagulum colour compression connoissance crystals DALTON Daumergidda deduced degree determined double refraction elastic force equal equation experiments glass globules Hazy heat hypophosphorous acid inches index error knife edges latent heat latitude length lime MDCCCXVIII mean measure mercury meridian mètre micrometer microscope muriatic muriatic acid Namthabad nearly number of vibrations obtained oxygen parallax Patchipolliam pectoral fin pendulum phenomena phosphoric acid phosphorus plane plate polar distance polarising force pole position potash prism produced profundity Punnæ purpurate quantity rectangular right ascension scale Sin.² Slider specific gravity sternum strontian sulphate supposed surface SW 1 Cloudy Temp temperature Therm thermometer thickness tints tion tube turnsol vapour Vibrations in 24 weight