Nature, Količina 108Sir Norman Lockyer Macmillan Journals Limited, 1921 |
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Zadetki 1–3 od 77
Stran 124
... stars , and for such stars a know- ledge of the parallax will enable us to compute the linear diameter . Many of the investigations about the sidereal universe made during the last twenty years have been possible only through the ...
... stars , and for such stars a know- ledge of the parallax will enable us to compute the linear diameter . Many of the investigations about the sidereal universe made during the last twenty years have been possible only through the ...
Stran 125
... stars in its neighbourhood by means of a position micrometer as used for double stars , and by Henderson , who used meridian observations in both co - ordinates of a Centauri . During the next fifty years a number of ob- servers made ...
... stars in its neighbourhood by means of a position micrometer as used for double stars , and by Henderson , who used meridian observations in both co - ordinates of a Centauri . During the next fifty years a number of ob- servers made ...
Stran 126
... stars , while as late as 1915 the number had risen only to about 200 . of the recent large publications we may instance the 260 determinations made at the McCormick Observatory in the five years 1914 to 1919.1 As one Let us consider the ...
... stars , while as late as 1915 the number had risen only to about 200 . of the recent large publications we may instance the 260 determinations made at the McCormick Observatory in the five years 1914 to 1919.1 As one Let us consider the ...
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acid æther Agriculture animals appears application Astronomical atomic weight BIRKBECK COLLEGE British Association C. V. Raman Cambridge cent characters chemical chemistry chemists College of Science colour Committee course Department discussion Edinburgh effect electric electrons energy Engineering existence expedition experience fact geography Geological given glass hermaphroditism important India industry Institute interest investigation J. J. Thomson laboratory lecture light London mathematical matter mechanical ment Meteorological method molecule Mount Everest Museum NATURE November observations Observatory obtained October October 20 optical organisation organism original paper period physical plants plates possible practical present problems produced Prof published radiation rainfall recent recognised reference regarded ROYAL ARSENAL Royal Society scientific Section September September 26 soil South species Spitsbergen stars suggested temperature theory thermionic emission tion University University of London volume