The Spectroscope and Its Applications |
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Page 5
... containing water . If the ray strikes the sur- face perpendicularly , it will be seen that no visible change takes place ; the ray simply proceeds directly R into the water without altering its direction . If how- ever the beam be ...
... containing water . If the ray strikes the sur- face perpendicularly , it will be seen that no visible change takes place ; the ray simply proceeds directly R into the water without altering its direction . If how- ever the beam be ...
Page 7
... containing a liquid such as bisulphide of carbon , with a layer of water floating on the top . The ray will be seen to be bent on entering the water , and still more bent on passing from the water into the layer of bisulphide of carbon ...
... containing a liquid such as bisulphide of carbon , with a layer of water floating on the top . The ray will be seen to be bent on entering the water , and still more bent on passing from the water into the layer of bisulphide of carbon ...
Page 41
... between a solid or liquid body , which gives you a continuous spectrum , and a vapour or gas , which gives you a spectrum contain- ing bright lines . The reason that different vapours and II . ] 41 AND ITS APPLICATIONS .
... between a solid or liquid body , which gives you a continuous spectrum , and a vapour or gas , which gives you a spectrum contain- ing bright lines . The reason that different vapours and II . ] 41 AND ITS APPLICATIONS .
Page 47
... of examining the spectra . I have here some tubes containing hydrogen and other gases at different pressures ( Fig . 27 ) , and when we wish to study the spectrum of a it in a tube , B gas II . ] 47 AND ITS APPLICATIONS.
... of examining the spectra . I have here some tubes containing hydrogen and other gases at different pressures ( Fig . 27 ) , and when we wish to study the spectrum of a it in a tube , B gas II . ] 47 AND ITS APPLICATIONS.
Page 48
... containing hydrogen at the pressure of one atmosphere , we shall see that the colour of the incandescent gas is a bright carmine red , the spectrum of which can easily be observed by placing the spark tube in front of the slit of one of ...
... containing hydrogen at the pressure of one atmosphere , we shall see that the colour of the incandescent gas is a bright carmine red , the spectrum of which can easily be observed by placing the spark tube in front of the slit of one of ...
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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.