The Spectroscope and Its Applications |
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... Newton , 1. - Plan of this work , 3. - What is a spectroscope ? 4. - What is a prism ? 4 . -Reflection and refraction , 4. - Effect of the prism on light , 9.— Composition of white light , 14. Dispersion , 17. - Use of the slit , 18 ...
... Newton , 1. - Plan of this work , 3. - What is a spectroscope ? 4. - What is a prism ? 4 . -Reflection and refraction , 4. - Effect of the prism on light , 9.— Composition of white light , 14. Dispersion , 17. - Use of the slit , 18 ...
Page 1
... why lectures on the spectroscope should not have been given two cen- turies ago ; for nearly two centuries have elapsed since the immortal Newton made his classical re- B S searches on the action of a prism upor sunlight . LECTURE I.
... why lectures on the spectroscope should not have been given two cen- turies ago ; for nearly two centuries have elapsed since the immortal Newton made his classical re- B S searches on the action of a prism upor sunlight . LECTURE I.
Page 2
... Newton and his successors would have brought a great deal more out of the prism than they did , if they had given a little more attention to it , and had tortured it as they did other things . Those who follow us may point to us and say ...
... Newton and his successors would have brought a great deal more out of the prism than they did , if they had given a little more attention to it , and had tortured it as they did other things . Those who follow us may point to us and say ...
Page 4
... Newton , to which I have already alluded , were connected with prisms , and were based on well - known properties of light . If a beam of light , as for instance sunlight or an artificial white light , be allowed to enter a dark room ...
... Newton , to which I have already alluded , were connected with prisms , and were based on well - known properties of light . If a beam of light , as for instance sunlight or an artificial white light , be allowed to enter a dark room ...
Page 12
... colours , or spectrum as it is called , was first discovered by Sir Isaac Newton , who tortured this spectrum in several ways . He took one of the colours thus produced , say red , as is shown in 12 [ LECT . THE SPECTROSCOPE.
... colours , or spectrum as it is called , was first discovered by Sir Isaac Newton , who tortured this spectrum in several ways . He took one of the colours thus produced , say red , as is shown in 12 [ LECT . THE SPECTROSCOPE.
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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.