Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3743Chemical news office., 1932 |
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Strona 18
... light is so feeble in comparison with the light of the sun itself that we cannot see them under ordinary conditions . How- ever , by means of a spectroscope attached to a telescope , we can see or photograph them almost any time when ...
... light is so feeble in comparison with the light of the sun itself that we cannot see them under ordinary conditions . How- ever , by means of a spectroscope attached to a telescope , we can see or photograph them almost any time when ...
Strona 19
... light of only hydrogen or calcium reveal many interesting things about prominences . They can be divided into two groups . Some of them are quiescent , that is , they do not change their shape for days . Others move very rapidly away ...
... light of only hydrogen or calcium reveal many interesting things about prominences . They can be divided into two groups . Some of them are quiescent , that is , they do not change their shape for days . Others move very rapidly away ...
Strona 31
... Light from the Sun and the Stars , " by Sir William Bragg , F.R.S. 66 MANCHESTER LITERARY AND PHILOSOPHI- CAL SOCIETY . Chemical Section . 36 , George Street , Manchester , at 7 p.m. Soirée . MONDAY , JANUARY 11 . INSTITUTE OF METALS ...
... Light from the Sun and the Stars , " by Sir William Bragg , F.R.S. 66 MANCHESTER LITERARY AND PHILOSOPHI- CAL SOCIETY . Chemical Section . 36 , George Street , Manchester , at 7 p.m. Soirée . MONDAY , JANUARY 11 . INSTITUTE OF METALS ...
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