The Spectroscope and Its Applications |
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... Professor Roscoe for permission to use several of the woodcuts which appear in his " Spectrum Analysis , " to which admirable work the present small volume will , I trust , be found useful as an introduction . My acknowledgments are ...
... Professor Roscoe for permission to use several of the woodcuts which appear in his " Spectrum Analysis , " to which admirable work the present small volume will , I trust , be found useful as an introduction . My acknowledgments are ...
Page 54
... Professors Reich and Richter , who were experimenting on zinc blend , and found two unknown indigo bands in the spectrum , which they successfully traced to the ex- istence of a small quantity of a new metallic element , which has been ...
... Professors Reich and Richter , who were experimenting on zinc blend , and found two unknown indigo bands in the spectrum , which they successfully traced to the ex- istence of a small quantity of a new metallic element , which has been ...
Page 70
... Professor Donati , and Mr. Huggins es- pecially , to whom we owe so much for his work in this direction , has made some observation's on two small comets - I am sorry they were not FIG 401 . Spectrum of Brorsen's comet ; 2 , Spectrum of ...
... Professor Donati , and Mr. Huggins es- pecially , to whom we owe so much for his work in this direction , has made some observation's on two small comets - I am sorry they were not FIG 401 . Spectrum of Brorsen's comet ; 2 , Spectrum of ...
Page 91
... Professor Stokes about 1852 . It is this . The light emitted by an incandescent vapour is due to the vibrations of its molecules , as a sound note emitted by a piano wire is due to the vibration of the wire . You have only to go into a ...
... Professor Stokes about 1852 . It is this . The light emitted by an incandescent vapour is due to the vibrations of its molecules , as a sound note emitted by a piano wire is due to the vibration of the wire . You have only to go into a ...
Page 94
... Professor Kirch- hoff made the following remarkable experiment : - " In order , " says Kirchhoff , for these are his own words , " to test in the most direct manner possible the fre- quently asserted fact of the coincidence of the ...
... Professor Kirch- hoff made the following remarkable experiment : - " In order , " says Kirchhoff , for these are his own words , " to test in the most direct manner possible the fre- quently asserted fact of the coincidence of the ...
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Common terms and phrases
absorption lines absorption spectrum Aldebaran application arrangement astronomers atmosphere band black lines blue bright lines Bunsen chromosphere coincident collimating lens colour comet continuous spectrum dark lines deal dense determine direct-vision dispersion electric lamp examine experiment F line fact flame Fraunhofer lines gas or vapour gaseous gases give glass green Huggins hydrogen lines important Induction Coils instance instrument iron Kirchhoff lens line of hydrogen lithium magnesium vapour metal minimum deviation nebula Newton NORMAN LOCKYER number of prisms observing telescope obtained Orionis pass perfectly easy pressure Professor prominences radiation rainbow band ray of light refracted refrangibility Science scientific seen showing shown in Fig slit sodium lines sodium vapour solar prominences solar spectrum solid or liquid spec spectra spectrum analysis Spectrum of carbon star spectroscope strontium substances sun-spot sunlight surface thing three prisms trum tube velocity violet visible white light Wollaston yellow
Popular passages
Page 96 - When this light was allowed to fall through a suitable flame coloured by common salt, dark lines were seen in the spectrum in the position of the sodium lines.
Page 94 - I obtained a tolerably bright solar spectrum, and brought a flame coloured by sodium vapour in front of the slit. I then saw the dark lines D change into bright ones.