The table includes about seventy known octaves ranging from 20 X units to 20,000 meters. The octaves are plotted on a logarithmic scale 1 X arbitrarily chosen as the end of the first octave. The wave-lengths and frequencies of such radiations as are characteristic of known phenomena as well as those which limit certain known regions, arc charted with notations of interest made opposite

Bailey, A. C.

English

University of Northern Iowa

Proceedings of the Iowa Academy of ScienceVolume 32 | Annual Issue Article 741925A Table of Wave Lengths and Frequencies ofElectromagnetic Radiations of Zero to InfinityA. C. BaileyIowa State CollegeCopyright © Copyright 1925 by the Iowa Academy of Science, Inc.Follow this and additional works at: https://scholarworks.uni.edu/piasThis Research is brought to you for free and open access by the Iowa Academy of Science at UNI ScholarWorks. It has been accepted for inclusion inProceedings of the Iowa Academy of Science by an authorized editor of UNI ScholarWorks. For more information, please contactscholarworks@uni.edu.Recommended CitationBailey, A. C. (1925) "A Table of Wave Lengths and Frequencies of Electromagnetic Radiations of Zero to Infinity," Proceedings of theIowa Academy of Science, 32(1), 377-377.Available at: https://scholarworks.uni.edu/pias/vol32/iss1/74A TABLE OF WAVE-LF:\GTH S Al\D FREQUENCIES OF ELECTROMAGNET I C  RADIATIONS FROM ZERO TO INFIN ITY :\ . C. BAJLJtY (ABSTRA CT) The table includes about :-eventy known octaves ranging from 20 X units to 20.000 meters . The octaves are plotted on a log­arithmic scale 1 X arb:trarily chosen as the encl of  the first octave .  Tl1e wave-lengths and frec1uencies of  such radiations as are char­acteristic of known phenomena as well as those which limit certain known regions, arc charted with notations of interest made opposite. An inset of sound vibrat ions is included in its proper place in the table, in parallel with the electro-magnetic vibrations ,  the octaves running up from the first octave ending with two v ibra­tions per second. to about the �ixteenth octave, and continuing on throngh the electro-magnetic vi  bra! ions to about the seventieth octave, or a frequency of  abuut 3 x 10"' .  Two classifications are given in the table o f  the different types of radiant energy and tbe limits arbitrarily set for each type. IowA STATE CoLLEGE . STGDIES ON THE EFFECT OF ULTR\-VIOLET RAYS UPON YEA ST l\fETABOLISM.  I .  THE EFFECT OF ULTRA-VIOLET LIGHT UPON THE MEDIGM A .  C.  BAILJ�Y, ] .  \V. vVooDROW, AND ELLIS I .  FULMER (ABSTRA CT) Exposure of  the medium ( composed of  optimum concentrations of salts and sugar ) to ultra-violet light renders it less effective for the growth of yeast. The development of the toxicity in­creases with duration and intensity of irradiation. An exposure of seven hours through qu;irt z at about l j  cm from a quartz mercury vapor lamp affects the medium in such a way that yeast will show practically no growth in the medium. The work is 1Bailey: A Table of Wave Lengths and Frequencies of Electromagnetic RadiatPublished by UNI ScholarWorks, 1925

A Table of Wave Lengths and Frequencies of Electromagnetic Radiations of Zero to Infinity

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A Table of Wave Lengths and Frequencies of Electromagnetic Radiations of Zero to Infinity

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