The Astrophysical Journal, Volumul 14University of Chicago Press, 1901 "Letters to the Editor" issued as Part 2 and separately paged from v. 148, 1967. Beginning in 2009, the Letters published only online. |
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Pagina 4
... shown , first , by the fact that they were first observed in the carbon arc ; and , second , by the fact that I have seen Ha and HB quite clearly in the magnesium metallic arc , when the poles were not rotating . The lines pro- duced in ...
... shown , first , by the fact that they were first observed in the carbon arc ; and , second , by the fact that I have seen Ha and HB quite clearly in the magnesium metallic arc , when the poles were not rotating . The lines pro- duced in ...
Pagina 5
to water vapor coming from the hydrogen generators . This is shown by the following two experiments : ( 1 ) I passed the stream of hydrogen through concentrated sulphuric acid and phosphorus pentoxide ; and even after the stream of dry ...
to water vapor coming from the hydrogen generators . This is shown by the following two experiments : ( 1 ) I passed the stream of hydrogen through concentrated sulphuric acid and phosphorus pentoxide ; and even after the stream of dry ...
Pagina 12
... shown by the " luminous cloud " of Crew and Basquin above referred to . The thermal cause also must depend upon the electrical cause in some way . It probably depends upon it directly , but , in any event , it is a function of it ...
... shown by the " luminous cloud " of Crew and Basquin above referred to . The thermal cause also must depend upon the electrical cause in some way . It probably depends upon it directly , but , in any event , it is a function of it ...
Pagina 14
... shown in the diagram . The dynamo furnishes a direct R CONDENSER SWITCH ARC ( DYNAMO ) current of 110 volts and when the switch was closed the cur- SPARK FIG . I. rent simply passed through the arc and the resistance in series . The arc ...
... shown in the diagram . The dynamo furnishes a direct R CONDENSER SWITCH ARC ( DYNAMO ) current of 110 volts and when the switch was closed the cur- SPARK FIG . I. rent simply passed through the arc and the resistance in series . The arc ...
Pagina 15
... shown in Fig . 1. The spark lines appeared as before in the spark , but disappeared as soon as the arc circuit was made ; the arc and the spark discharges were both passing through the arc as before ; I had simply cut out the " spark ...
... shown in Fig . 1. The spark lines appeared as before in the spark , but disappeared as soon as the arc circuit was made ; the arc and the spark discharges were both passing through the arc as before ; I had simply cut out the " spark ...
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Absorption line Allegheny Observatory amount appears April ASTROPHYSICAL JOURNAL atmosphere Beginning of bright black body bright band brighter cadmium carbon celestial chlorine column computed condensations corona curve dark line density determined diameter diffuse displacements Earth eclipse End of band equations error exposure faculæ faint February 25 focal length focus formula gaseous gases given heat hydrogen lines inches increase intensity July Jupiter kilometers lens Lick Observatory light magnitude March March 18 Mars maximum mean measured metallic Mills spectrograph minimum mirror nebula negative Nova Persei observations obtained orbit photographs planets plates position pressure prism radiation region residual rays Roche sphere SCHEINER Seed 27 shown Singkep solar spark lines spectra spectrograph spectroscope spectrum star Stefan's law streamers surface telescope temperature tenth-meters tion tube two-foot reflector values vapor velocity violet wave-lengths width Yerkes Observatory ΙΟ