Word: hydrogenized
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...discovering variable stars is very successful. There is in the observatory a library, so to speak, of the sky for the past eight years. During this time nearly 60,000 photographs of the skies at differet times have been taken. As soon as a star is noticed with hydrogen lines on its spectrum, a reference is immediately made to the photpraphs made in that region where the star is found. From these different photographs it can be learned whether the star is always of the same brightness. This method leads to the discovery of more variable stars here than...
Physical Colloquium. The Critical Constants of Hydrogen. Jefferson Physical Laboratory, Room...
Physical Colloquium. The Critical Constants of Hydrogen. Jefferson Physical Laboratory, Room...
Boylston Chemical Club.Under the auspices of the Boylston Chemical Club, Dr. Bancroft will deliver a lecture this evening at 7.30 o'clock in Boylston 9, on the subject: "Nascent Hydrogen." The public are invited...
...most complete set that exists. The six-inch telescope has been used for observing the variable stars and investigating photometric methods of observation. From the photographs taken in Peru it has been discovered that eight variable stars, in addition to the thirty previously noticed ones, have hydrogen lines, bright in their spectra, and by this property, five new variable stars have been discovered. The number of stars of the fifth type, having bright lines in their spectra, like those discovered by Wolf and Rayet, has been increased by nine. Of the thirty seven of the kind, twenty-seven have been...