Nature, Volume 32Sir Norman Lockyer Macmillan Journals Limited, 1885 |
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Página 63
... means of easily transportable instruments , has already occupied the Pulkowa astronomers . W. Struve and W. K. Döllen proposed very skilful methods of observations . The latter had proposed to determine the time by means of a special ...
... means of easily transportable instruments , has already occupied the Pulkowa astronomers . W. Struve and W. K. Döllen proposed very skilful methods of observations . The latter had proposed to determine the time by means of a special ...
Página 249
... means than those described , though not perhaps in a more simple or economical way . The elec- tric light has been to a certain extent already treated in a similar way by suspending arc lights at great altitudes , and by means of ...
... means than those described , though not perhaps in a more simple or economical way . The elec- tric light has been to a certain extent already treated in a similar way by suspending arc lights at great altitudes , and by means of ...
Página 326
... means measure the motions of the mirror with very great accuracy and delicacy . Having thus described in detail the various arrange- ments tending to make the thermopile and galvanometer a very delicate instrument for measuring radiant ...
... means measure the motions of the mirror with very great accuracy and delicacy . Having thus described in detail the various arrange- ments tending to make the thermopile and galvanometer a very delicate instrument for measuring radiant ...
Índice
Auroral Zone ElevenYear Meridional Oscillation of the Bath Natural History and Antiquarian Field Club | 12 |
Prof Auwers Calculations of Longitude of Places bination of the Ordnance and Admiralty Surveys E | 101 |
Earthquakes in 11 85 460 Industrial Education in Behrens Dr W J Guide for the Microscopical Investiga | 193 |
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