The Annals of Electricity Magnetism and Chemistry and Guardian of Experimental Science, Band 8Sherwood, Gilbert and Piper |
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Seite 30
... Declination No. NAME OF STAR . of 1840 . Star . Obs'd time of transit by the sidereal clock . Right Ascension of Star . Clock slow of sidereal time . Q " h . m . S. m . S. m . S. Difference of Jobs'd times- Diff . of A.R. * July . S. 1 ...
... Declination No. NAME OF STAR . of 1840 . Star . Obs'd time of transit by the sidereal clock . Right Ascension of Star . Clock slow of sidereal time . Q " h . m . S. m . S. m . S. Difference of Jobs'd times- Diff . of A.R. * July . S. 1 ...
Seite 31
... Declination of Star . Obs'd time of transit by the sidereal clock . Right Ascension ' of Star . Clock slow of sidereal time . ' Difference of Jobs'd times- Diff . of A.R. 45 66 a Cygni 66 68 July . 43 143 Aquilæ 66 44 a2 Capricorni 46 ...
... Declination of Star . Obs'd time of transit by the sidereal clock . Right Ascension ' of Star . Clock slow of sidereal time . ' Difference of Jobs'd times- Diff . of A.R. 45 66 a Cygni 66 68 July . 43 143 Aquilæ 66 44 a2 Capricorni 46 ...
Seite 32
... declination is at least equal to 40 ° . There are defects in all these methods . The first supposes the rate of the clock to be uniform during the 24 hours : this may not always be the case ; but on account of the slow motion of the ...
... declination is at least equal to 40 ° . There are defects in all these methods . The first supposes the rate of the clock to be uniform during the 24 hours : this may not always be the case ; but on account of the slow motion of the ...
Seite 33
... declination is a great refinement upon the old methods , and has given an accuracy to the determination of this magnetic element , which has hitherto been considered attainable only in astronomy . For a more minute description of the ...
... declination is a great refinement upon the old methods , and has given an accuracy to the determination of this magnetic element , which has hitherto been considered attainable only in astronomy . For a more minute description of the ...
Seite 34
... declination magnetometer , and the horizontal and vertical force instruments , shall each be observed once every two hours during the 24 hours on every day of the year ; that is to say , one of them is read 2m 30s before each even hour ...
... declination magnetometer , and the horizontal and vertical force instruments , shall each be observed once every two hours during the 24 hours on every day of the year ; that is to say , one of them is read 2m 30s before each even hour ...
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ammonia animal apparatus appears applied atmosphere atoms attraction ball battery become Becquerel bodies boiler brass camphor carbonic acid cause chemical circuit circumstances cloud colour condenser conductor copper curve cylinder declination decomposing decomposition deposited dilute direction disc discharge divergence effect electric action electric current electric fluid electrified electro-magnet electrometer electroscope employed evaporation experiments extremities fact force galvanic galvanometer gilding glass gold leaf heat hydrogen immersion inches increase induced instrument insulated intensity iron latter liquid luminous arc magnetic magnetometer manner means mercury metal minutes motion needle negative nitric acid observations obtained oxamic oxamic acid oxamide oxide oxygen pairs paper particles phenomena Philosophical piece pile plate platinum poles portion positive present produced proportion repulsion resistance salt shew side solution steam substance sufficient sulphuric acid surface takes place temperature thickness tion tricity tube vapour vessel voltaic WILLIAM STURGEON wire zinc