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Cosmos, The (Newspaper) - October 22, 1909, Cedar Rapids, Iowa THE COSMOS COE COLLEGE VOL. XXI OCTOBER 22, NO. 3 NEW COLLEGE EQUIPMENT New Apparatus for Physics Laboratory Professor Weld has recently ed some consignments of very fine new instruments for use in the De- of The larger part of these are optical instruments for the course of theory of The most important is an optical bench by W. L. E. Gurley of with a large number of attachments for ex- and measurements in inter- ference and those nomena which go far toward making the study of light the most beautiful and attractive field in the whole main of Another splendid piece is a spectrometer by the same makers with finely graduated silver for the measurement of in- dices of wave lengths of spectrum and general metric One of the most interesting pieces is a heliostat by of consisting of an arrangement of mirrors moved by clockwork in such a way that a beam of reflected from the will be maintained steadily in the same direction all from sunrise to and can thus be made for optical purposes without the movement and interruption which are inevitable with stationary The broad stone ledges outside tain windows of the new physics oratory are for the purpose of giving solid support to this instrument in the open Other not in- cludes a set of precision platinum imported from tor i us of makers of the ex- equal arm balance which fessor Weld has for a year been sub- to most exacting special These new weights are similar in all respects to the sets of gold weights already used in the and are to be officially standardized at Washington and used as laboratory standards There is also a ond set of precision thermometers by Siebert and Kuhn of over their entire range to tenths of a and like the to be and reserved entirely for testing other less expensive It is gratifying to know that our physics laboratory is gradually being equipped with the best apparatus ob- and will before long be ready to meet the full requirement of every course in physics Professor Weld is perfecting a system of counting which will keep close track of every piece in the laboratory and vastly reduce that wholesale loss and deterioration which delicate and expensive equipment of this kind suffers in so many tions through carelessness and sponsible 55
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