The Astrophysical Journal, Volumul 10University of Chicago Press, 1899 "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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... SPARK . John Fred Mohler MINOR CONTRIBUTIONS AND NOTES : On Titanium for a Comparison Spectrum , Edwin B. Frost , 207 ; Note on the Position of the Maximum in the Spectral Energy - Curve of a Black Body , Frank W. Very , 208 ; The Third ...
... SPARK . John Fred Mohler MINOR CONTRIBUTIONS AND NOTES : On Titanium for a Comparison Spectrum , Edwin B. Frost , 207 ; Note on the Position of the Maximum in the Spectral Energy - Curve of a Black Body , Frank W. Very , 208 ; The Third ...
Pagina 73
... spark gap in the secondary circuit of an induction coil , the other without Leyden jar and spark gap . As in the case of argon this latter spectrum consists on the whole of less refrangi- ble lines , and I believe , if it were possible ...
... spark gap in the secondary circuit of an induction coil , the other without Leyden jar and spark gap . As in the case of argon this latter spectrum consists on the whole of less refrangi- ble lines , and I believe , if it were possible ...
Pagina 74
... spark spectrum looked like . I took the very last that had evaporated , removed the oxygen and through the remaining sixty cubic centimeters of gas I passed a spark . The gas exploded violently . I repeated the experiment with the next ...
... spark spectrum looked like . I took the very last that had evaporated , removed the oxygen and through the remaining sixty cubic centimeters of gas I passed a spark . The gas exploded violently . I repeated the experiment with the next ...
Pagina 75
... spark . After removing the oxygen by means of pyrogallic acid about 30 cubic centimeters of the gas remained . At atmospheric pressure the condensed spark between platinum electrodes showed besides some platinum lines a great number of ...
... spark . After removing the oxygen by means of pyrogallic acid about 30 cubic centimeters of the gas remained . At atmospheric pressure the condensed spark between platinum electrodes showed besides some platinum lines a great number of ...
Pagina 77
... spark gap the spectrum of krypton changes as well as the spectrum of argon . The new lines are mostly in the blue part of the spectrum . SPECTRUM OF KRYPTON EMITTED BY A VACUUM TUBE WITHOUT LEYDEN JAR AND SPARK GAP . Wave - length ...
... spark gap the spectrum of krypton changes as well as the spectrum of argon . The new lines are mostly in the blue part of the spectrum . SPECTRUM OF KRYPTON EMITTED BY A VACUUM TUBE WITHOUT LEYDEN JAR AND SPARK GAP . Wave - length ...
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absorption aperture apparatus appear astronomers ASTROPHYSICAL JOURNAL axis bands blackening Board of Visitors bolometer bright lines brighter camera carbon catalogue cents chromosphere cluster Coin comparison compound spectrum corona corresponding curve density determined diameter disk displacement eclipse electrodes employed equal error exposure faint stars Fe lacking focal length given gives Harvard College Observatory hydrogen lines inches instrument intensity investigation Keeler Lick Observatory light line of sight luminosity magnitude maximum mean measured mercury vapor Messier 13 metallic meteors micrometer mirror Morris Travers Naval Observatory objective observations obtained orbit oxygen photographs photometric Pickering plate position Potsdam pressure prism Professor radiation rays refractor region ring nebula Scheiner screw slit spark spectra spectrograph spectroheliograph spectroscope stellar telescope temperature tenth-meters tion trum tube University of Chicago Ursae vanadium Variable Stars Variable Velocity visual W. W. Campbell wave-lengths wedge Widely separated Yerkes Observatory
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Pagina 49 - EMGs were sampled with surface electrodes for ten revolutions at the beginning, in the middle and at the end of each work...
Pagina 272 - When an appointment or detail is to be made to the office of astronomical director, director of the Nautical Almanac, astronomer, or assistant astronomer, the board of visitors may recommend to the Secretary of the Navy a suitable person to fill such office, but such recommendation shall be determined only by a majority vote of the members present at a regularly called meeting of the board held in the city of Washington.
Pagina 197 - The officers of the Society shall consist of a President, two Vice Presidents, a Secretary...
Pagina 197 - Society to serve for a period of one year, and two members shall be chosen annually to serve for a period of two years or until their successors are duly elected and qualified.
Pagina 272 - The board of visitors shall prepare and submit to the Secretary of the Navy regulations prescribing the scope of the astronomical and other researches of the Observatory and the duties of its staff with reference...
Pagina 357 - PRINTERS AND BINDERS THE PRINTING OF BOOKS DEMANDING TASTE AND CAREFUL EXECUTION, PRIVATE EDITIONS, COLLEGE CATALOGUES AND ANNUALS A SPECIALTY. WE PRINT MORE FINE BOOKS THAN ALL OTHER HOUSES WEST OF NEW YORK. OUR NEW FACTORY, RUN ENTIRELY BY ELECTRICITY, IS THE MOST ADVANCED PRINTING PLANT IN THE COUNTRY. THE LAKESIDE PRESS BLDG., PLYMOUTH PLACE, COR. POLK, CHICAGO.
Pagina 384 - Sold in quart bottles only, by Druggists and high-class Grocers. Prepared only by Henry B. Platt, Platt Street, New York.