The Spectroscope and Its Applications |
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Page 44
... lithium instead of sodium , we obtain a brilliant carmine tinted flame , which on examination by the spectroscope is found to give a spectrum consisting of one splendid red , and a fainter orange line . Potas- . If , sium gives a violet ...
... lithium instead of sodium , we obtain a brilliant carmine tinted flame , which on examination by the spectroscope is found to give a spectrum consisting of one splendid red , and a fainter orange line . Potas- . If , sium gives a violet ...
Page 45
... lithium flame ; but in the spectroscope there is no possibility of doubt , the spectrum of strontium consists of a group of several lines in the red and orange , and a fine line in the blue end of the spectrum . If a higher temperature ...
... lithium flame ; but in the spectroscope there is no possibility of doubt , the spectrum of strontium consists of a group of several lines in the red and orange , and a fine line in the blue end of the spectrum . If a higher temperature ...
Page 52
... lithium , and do not get the characteristic red line , we know that not even the 6 - millionth of a grain is present ... lithium . Lithium was only known formerly to exist in four minerals ; it is now known , thanks to the spectroscope ...
... lithium , and do not get the characteristic red line , we know that not even the 6 - millionth of a grain is present ... lithium . Lithium was only known formerly to exist in four minerals ; it is now known , thanks to the spectroscope ...
Page 53
... lithium ; and if we analysed in the same way the ash of milk , or the ash of blood , or of grapes , tea , sugar , & c . , we should also find it . Dr. Miller has shown that , in the Wheal Clifford Mine , 800 lb. of this salt are given ...
... lithium ; and if we analysed in the same way the ash of milk , or the ash of blood , or of grapes , tea , sugar , & c . , we should also find it . Dr. Miller has shown that , in the Wheal Clifford Mine , 800 lb. of this salt are given ...
Page 57
... lithium , then kill the guinea - pig , and examine the ash of the eye lens , say three hours after the lithium has been taken into the system , and if we find the lithium line in the spectrum of the ash vapour where no lithium was ...
... lithium , then kill the guinea - pig , and examine the ash of the eye lens , say three hours after the lithium has been taken into the system , and if we find the lithium line in the spectrum of the ash vapour where no lithium was ...
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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.