Search Details

Word: spectra (lookup in dictionary) (lookup stats)
Dates: during 1920-1929
Sort By: most recent first (reverse)


Usage:

Work has been begun at the University Observatory on the extension of the Henry Draper Catalogue, and immense compilation of the spectra of 225,000 stars in every part of the sky, made over a period of many years as a part of the Observatory's fundamental task of surveying and mapping the heavens...

Author: NO WRITER ATTRIBUTED | Title: OBSERVATORY BEGINS TO EXTEND GUIDE TO STARS | 1/22/1923 | See Source »

...helpless before the caprices of the huge drum, can be readily imagined even by those who have not read "Quatre-vingt-treize". The picture of man cowering before the creations of his own hand, which have grown beyond his control and turn to "plague the inventor," is a favorite spectra with a certain school of philosophers, and with alarmists in general. "R. U. R.", on the New York stage, is a fanciful prophecy of what man's mechanical ingenuity might lead to, and that prophecy is not a cheerful one. Samuel Butler's "Book of the Machines", which argues...

Author: NO WRITER ATTRIBUTED | Title: JUGGERNAUT | 1/10/1923 | See Source »

...popularly supposed, but by doing what was done in the case of this discovery of the speed of RZ Cephei, that is, by studying and measuring by day, in the laboratory, photographs taken at night, and by computing the significance of the changes in the brilliance or position or spectra of the stars as recorded on these plates...

Author: NO WRITER ATTRIBUTED | Title: FIND VELOCITY OF STAR IS OVER 650 MILES PER SECOND | 12/2/1922 | See Source »

...Physical Colloquium, held yesterday afternoon in the Jefferson Physical Laboratory. Professor F. A. Saunders delivered a review on "Origin of Spectra by Foote and Mohiler...

Author: NO WRITER ATTRIBUTED | Title: Professor Saunders Speaks on Spectra | 10/17/1922 | See Source »

...Physical Colloquium this afternoon in Room 3 of the Jefferson Physical Laboratory at 5 o'clock Professor F. A. Saunders of the Physics Department will speak in review on "Origin of Spectra by Foote and Mohiler". All members of the University are invited to attend...

Author: NO WRITER ATTRIBUTED | Title: Physical Colloquium Meets Today | 10/16/1922 | See Source »

Previous | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | Next