Word: instruments
(lookup in dictionary)
(lookup stats)
Dates: during 1900-1909
Sort By: most recent first
(reverse)
...over the number of the previous year. Many stars, whose variability is doubtful, have been observed by means of two photometers, whose accuracy of measurement permits even slight changes to be detected with certainty. The reduction of the observations of the stars in the Zone is nearly completed. The instrument used for this work should be remounted in a separate building...
...work laid out for the 2-inch and 4-inch meridian photometers has been completed, the observations exceeding a million in number. With the 12-inch instrument 60,208 settings were made, raising the total during the last 10 years to over...
...Council hopes that it may prove of assistance to you in the pursuance of your policies, and that it may be an effective instrument of co-operation between the students and the Governing Bodies." (Signed) E. C. BACON '10. G. H. BALCH '12. F. M. BLAGDEN '09. R. C. BROWN '10. F. H. BURR '09. A. G. CABLE '09. E. P. CURRIER '09. H. FISH '10. E. HARDING '11. P. M. HENRY '09. L. K. LUNT '09. R. M. MIDDLEMASS '09. W. M. RAND '09. S. A. SARGENT, JR., '10. W. R. SEVERANCE '09. P. D. SMITH...
...instrument is controlled altogether from the observing room, where there are several levers for use in setting the telescope in motion. The following of the object under observation has been accomplished with the aid of an astronomical driving clock, and electricity is to be used for both sets of motions. Before the recorder are two long slits through each of which can be seen a white ribbon impressed with divisions and figures corresponding with degrees and minutes of the celestial are. These ribbons move up and down with the telescope, serving to guide the manipulation of the lever, so that...
That the stock-ticker, which after all is a delicate and sensitive electrical instrument, should register this moral regeneration, is a sign of health and not of disease, and the physician who detects the germs of that disease which is sapping public confidence and poisoning the industrial and political body, is a benefactor of his country and prophet of his day and his generation. When Jenner introduced vaccination into the domain of curative and preventive medicine, the reactionaries pronounced him as an enemy of mankind, but the next generation held him up as one of the greatest benefactors...