The Spectroscope and Its Applications |
From inside the book
Results 1-5 of 12
Page
... Atmosphere of the sun , 98. — The sun's limb and spots , 99. - Aldebaran and a Orionis , 100. Nature of sun - spots , 102. - General absorption , 105 . -Selective absorption , 106. — Magnesium lines in the solar spectrum , 108 ...
... Atmosphere of the sun , 98. — The sun's limb and spots , 99. - Aldebaran and a Orionis , 100. Nature of sun - spots , 102. - General absorption , 105 . -Selective absorption , 106. — Magnesium lines in the solar spectrum , 108 ...
Page
... atmosphere of Sirius 57. Deviation of the F line in a spot - spectrum 104 105 IIC III 113 58. Shifting of the F line in a solar cyclone . 114 59. Prominence observed 14th March , 1869 , 11h . 5m . 60. The same prominence , 11h . 15m ...
... atmosphere of Sirius 57. Deviation of the F line in a spot - spectrum 104 105 IIC III 113 58. Shifting of the F line in a solar cyclone . 114 59. Prominence observed 14th March , 1869 , 11h . 5m . 60. The same prominence , 11h . 15m ...
Page 22
... them - by which we are enabled now to determine the pressures acting in the atmospheres of the most distant stars - simply to the fact that Dr. Wollaston , instead of drilling a round hole , used a slit 22 [ LECT . THE SPECTROSCOPE.
... them - by which we are enabled now to determine the pressures acting in the atmospheres of the most distant stars - simply to the fact that Dr. Wollaston , instead of drilling a round hole , used a slit 22 [ LECT . THE SPECTROSCOPE.
Page 48
... 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 the spectroscopes before described . This ...
... 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 the spectroscopes before described . This ...
Page 49
... atmospheric pressure is very broad and indistinct at the edges ; and that the line as seen in the almost vacuous tube ... atmosphere , and yet not so sharp and well defined as in the almost vacuous tube . Thus it will be seen that this ...
... atmospheric pressure is very broad and indistinct at the edges ; and that the line as seen in the almost vacuous tube ... atmosphere , and yet not so sharp and well defined as in the almost vacuous tube . Thus it will be seen that this ...
Other editions - View all
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.