The London, Edinburgh and Dublin Philosophical Magazine and Journal of ScienceTaylor & Francis, 1901 |
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Page 122
... bolometer || and was using it in that year for these researches . This may perhaps seem the place to speak of this instrument , though with the later developments which have made it what it is to - day , it has grown to something very ...
... bolometer || and was using it in that year for these researches . This may perhaps seem the place to speak of this instrument , though with the later developments which have made it what it is to - day , it has grown to something very ...
Page 123
... bolometers in use , for instance , the strip is a tenth of a millimetre , or one two- hundred - and - fiftieth of an inch in width ; and yet it is to be described as only a kind of tape , since its thickness is less than a tenth of this ...
... bolometers in use , for instance , the strip is a tenth of a millimetre , or one two- hundred - and - fiftieth of an inch in width ; and yet it is to be described as only a kind of tape , since its thickness is less than a tenth of this ...
Page 124
... bolometer has been brought to grope in the dark and to thus feel the presence of narrow Fraunhofer - like lines by their cooler temperature alone , with an error of the order of that in refined astronomical measurement ; that is to say ...
... bolometer has been brought to grope in the dark and to thus feel the presence of narrow Fraunhofer - like lines by their cooler temperature alone , with an error of the order of that in refined astronomical measurement ; that is to say ...
Page 125
... bolometer , had a wave - length of about 28 " , or nearly two octaves below the " great A " of Fraunhofer . He stated in this communication of 1882 that the galvano- meter then responded readily to changes of temperature in the bolometer ...
... bolometer , had a wave - length of about 28 " , or nearly two octaves below the " great A " of Fraunhofer . He stated in this communication of 1882 that the galvano- meter then responded readily to changes of temperature in the bolometer ...
Page 126
... bolometer . The bolometer , which is wholly independent of light as a sensation and notes it only as a manifestation of energy , first lays down the spectrum by curves of energy from which the linear spectrum is in turn derived . Two ...
... bolometer . The bolometer , which is wholly independent of light as a sensation and notes it only as a manifestation of energy , first lays down the spectrum by curves of energy from which the linear spectrum is in turn derived . Two ...
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Common terms and phrases
æther apparatus atom bismuth calculated carbon cathode centim centre charge coil component condenser condensing-plates constant corresponding Crémieu crystal Crystallographic Axis curve cyanogen deflexion density diameter dielectric direction discharge disk distance effect electric electrodes electrometer electromotive force element equal equation equilibrium experiments field force formula frequency function galvanometer gases given gives harmonic heat Hence hydrogen increase ionization ions J. J. Thomson kilometres per second kinetic energy length light lines liquid magnetic mean measured metal method millimetres molecules motion needle negative ions observed obtained paper particles period Phil phosphorus plane plate positive potential pressure produced quaternions radiation radius ratio resistance reversed rotation sectors space spectra spectrum spheres suppose surface TABLE temperature theory tube vary velocity vibrations volts volume Voss machine wave-length waves wire zero