Philosophical Transactions of the Royal Society of London, Volumen 117W. Bowyer and J. Nichols for Lockyer Davis, printer to the Royal Society, 1827 |
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Página 71
... needle , and of magnets revolv- ing under a copper disc ; so that , at different distances , some of the forces which were brought into action during rotation , had very different angles of inclination to the plane of the needle , in ...
... needle , and of magnets revolv- ing under a copper disc ; so that , at different distances , some of the forces which were brought into action during rotation , had very different angles of inclination to the plane of the needle , in ...
Página 78
... which I obtained by comparing the deviations of a magnetized needle with the torsion of the wire , were extremely uniform . If the force exerted by the wire be proportional to the torsion , 78 Mr. CHRISTIE on the mutual action of.
... which I obtained by comparing the deviations of a magnetized needle with the torsion of the wire , were extremely uniform . If the force exerted by the wire be proportional to the torsion , 78 Mr. CHRISTIE on the mutual action of.
Página 101
... needle , the force by which the plate urged the needle appeared to vary nearly as the inverse 4th power of the distance , but that when magnets revolved horizontally under a copper disc , the force with which they urged it appeared to ...
... needle , the force by which the plate urged the needle appeared to vary nearly as the inverse 4th power of the distance , but that when magnets revolved horizontally under a copper disc , the force with which they urged it appeared to ...
Página 108
... needle . For this purpose the suspending wire was twisted 2 , 4 , 6 circles by making the magnets describe 2 , 4 , 6 circles , first in the direction of screwing , then in the contrary direction , noting the corres- ponding deviations ...
... needle . For this purpose the suspending wire was twisted 2 , 4 , 6 circles by making the magnets describe 2 , 4 , 6 circles , first in the direction of screwing , then in the contrary direction , noting the corres- ponding deviations ...
Página 109
... needle became steady in its direction , when the devia- tion marked by the index was noted : the same was done in the direction of unscrewing ; and the mean of these deviations was taken as the deviation due to the rotation of the ring ...
... needle became steady in its direction , when the devia- tion marked by the index was noted : the same was done in the direction of unscrewing ; and the mean of these deviations was taken as the deviation due to the rotation of the ring ...
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Términos y frases comunes
aberration ammonia analysis appears atomic weight axis ball Barometer barytes bismuth braces brown oxide carbonate carbonic acid centre chlorine chromate chromate of lead chromate of potash chromic acid cloudless Cloudy compass compound computed containing copper corresponding crystals deviations diameter digested dipping needle disc dissolved distance effect employed equator error evaporated to dryness experiments Fine-cloudy Fine-light clouds fired focal length glass grains green oxide hazy heated point hydrogen inches Lond lungs magnets revolved maximum east MDCCCXXVII Mean Mean Mean meridian metallic muriate of chromium muriatic acid nearly nitric acid observations obtained Overcast oviduct oxide of chromium oxygen peroxide of iron phænomena place of heat portion precipitate produced protoxide quantity radii Rain red heat red liquid ring Royal salt shells Society soda solution substance sugar sulphuric acid surface tartaric acid temperature tion tube variation velocity wire
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