Nature, Količina 93Sir Norman Lockyer Macmillan Journals Limited, 1914 |
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Zadetki 1–3 od 85
Stran 205
... tube , whilst the temperature of the pro- lucts leaving the tube was about 200 ° C. Of the total evaporation , no less than 70 per cent . occurred over the first linear foot of the tube , 22 per cent . over the second foot , and only 8 ...
... tube , whilst the temperature of the pro- lucts leaving the tube was about 200 ° C. Of the total evaporation , no less than 70 per cent . occurred over the first linear foot of the tube , 22 per cent . over the second foot , and only 8 ...
Stran 218
... tube . ELEITZ WETZLAR FIG . 4. - The Leitz binocular microscope . Fig . 3 repre- sents the con- struction in the Beck model , where EA represents the silvered film between the two prisms . In both the Beck and the Leitz model ...
... tube . ELEITZ WETZLAR FIG . 4. - The Leitz binocular microscope . Fig . 3 repre- sents the con- struction in the Beck model , where EA represents the silvered film between the two prisms . In both the Beck and the Leitz model ...
Stran 271
... tube , in fact , generally requires " maturing " until its vacuum when at work will keep practically constant , and yet be neither too high nor too low . This calls for much care and patience on the part of the operator . A bulb may in ...
... tube , in fact , generally requires " maturing " until its vacuum when at work will keep practically constant , and yet be neither too high nor too low . This calls for much care and patience on the part of the operator . A bulb may in ...
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GEOLOGICAL SOCIETY at 8 An Apparently Paleolithic Drawing on | 36 |
Note on a Functional Equation | 51 |
RadioActive Elements and the Periodic Table | 121 |
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absolute magnitudes acid æther appears April atomic atomic weight balloon British cent chemical chemistry classes College colour committee contains density described direction discussion edition effect electric electrons Engineering experiments fact Funafuti Geological giant stars given gives Hermann et Fils illustrated important increase industry Institute interesting investigation J. J. Thomson laboratory large number larvæ lectures lines London magnetic magnitude March matter means measures ment metals Meteorological method metric system mineral motion Museum National Physical Laboratory NATURE observations Observatory obtained origin paper parallax period photographs physical plants plates present Price problems produced Prof published radiation radium recent region rocks Royal Society schools scientific solar species spectra spectral classes spectrum stars surface temperature theory tion tube University various velocity volume W. H. Bragg