The New Encyclopaedia Britannica, Volumes 1-10Encyclopaedia Britannica, 1974 - Reference [1] Propaedia: outline of knowledge and guide to the Britannica.--[2]-[11] Micropaedia: ready reference and index.--[12]-[30] Macropaedia: knowledge in depth. |
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Page 308
... heterosphere and is characterized also by the presence of light atoms , such as helium and hydrogen , at its higher altitudes . A relative increase of these light elements in comparison with heavier elements such as nitrogen and oxygen ...
... heterosphere and is characterized also by the presence of light atoms , such as helium and hydrogen , at its higher altitudes . A relative increase of these light elements in comparison with heavier elements such as nitrogen and oxygen ...
Page 310
... heterosphere diffusion zone thermosphere altitude ( kilometres ) 1,200 T 1958 1959 1,000 1960 1961 1962 800 1964 600 altitude ( kilometres ) 100 90 80 70 1010 homosphere mesopause mesosphere night day 10 ' ' لس 1012 concentration ...
... heterosphere diffusion zone thermosphere altitude ( kilometres ) 1,200 T 1958 1959 1,000 1960 1961 1962 800 1964 600 altitude ( kilometres ) 100 90 80 70 1010 homosphere mesopause mesosphere night day 10 ' ' لس 1012 concentration ...
Page 311
... heterosphere . The equations of dif- fusion reveal that the escape of 1,000,000 atoms of heli- um per square centimetre per second is perfectly possible , thus maintaining a helium distribution close to the equi- librium of diffusion in ...
... heterosphere . The equations of dif- fusion reveal that the escape of 1,000,000 atoms of heli- um per square centimetre per second is perfectly possible , thus maintaining a helium distribution close to the equi- librium of diffusion in ...
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The New Encyclopaedia Britannica, Volumes 1-10 Encyclopaedia Britannica Publishers, Inc. Staff No preview available - 1974 |
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19th century aesthetic ancient areas armour army arthropods artiodactyls artists aschelminths Asia Asian Assam Asterales astronomical atheism Athens atheriniforms Atlantic atmosphere atoms Basin beryciforms Cenozoic Central centre China climate countries criticism culture early Earth East economic effect electrons elements energy exosphere Finland forces forest fossil France function galaxies Games gases gastrotrichs German Greek groups Gt.Brit heterosphere Hittite homosphere hydrogen important increase India Indonesia industrial Italy Japan kilometres layer lines literature mass ment metres miles military modern molecules mountain North occur Ocean Olympic orbit organization original oxygen painting particles percent period planets Pleistocene political population priapulids produced radiation radio range region religion result rotifers Siberia social society solar South Southeast Southeast Asia southern Soviet species spectra spectrum stars structure style surface Sweden temperature theory tion tradition ture types usually wavelengths western zone