The Physical Basis of SocietyD.Appleton, 1928 - 526 من الصفحات |
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الصفحة 7
... common metals . There are stars so cool that they have fluted spectra which do not show the characteristic lines of their elements . While man cannot rival in his laboratories the conditions of temperature and pressure found in the ...
... common metals . There are stars so cool that they have fluted spectra which do not show the characteristic lines of their elements . While man cannot rival in his laboratories the conditions of temperature and pressure found in the ...
الصفحة 8
... common , the majority are very rare . Some are known by name , at least , to every one but it is doubtful if one person in a hundred in the United States can name the three commonest elements on earth . As a matter of fact , two ...
... common , the majority are very rare . Some are known by name , at least , to every one but it is doubtful if one person in a hundred in the United States can name the three commonest elements on earth . As a matter of fact , two ...
الصفحة 9
... common use , but the equally valuable words hydrosphere ( the water bodies ) and lithosphere ( the rock crust ) are seldom heard . The appearance and properties of many of these elements have THE EARTH AND ITS ELEMENTS 9.
... common use , but the equally valuable words hydrosphere ( the water bodies ) and lithosphere ( the rock crust ) are seldom heard . The appearance and properties of many of these elements have THE EARTH AND ITS ELEMENTS 9.
الصفحة 18
... common atmos- pheric gases , as well as carbon dioxide and water vapor , long ago escaped . This is why the moon is dead . So much for the influence of size and mass . But if the moon's atmosphere had always been exceedingly cold , as ...
... common atmos- pheric gases , as well as carbon dioxide and water vapor , long ago escaped . This is why the moon is dead . So much for the influence of size and mass . But if the moon's atmosphere had always been exceedingly cold , as ...
الصفحة 21
... common salt ( NaCl ) and the liquid remaining is chiefly Epsom and Glauber salts . A similar fate awaits the oceans . In the table of the chemical elements on page 8 no mention was made of such valuable substances as gold , silver , and ...
... common salt ( NaCl ) and the liquid remaining is chiefly Epsom and Glauber salts . A similar fate awaits the oceans . In the table of the chemical elements on page 8 no mention was made of such valuable substances as gold , silver , and ...
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acres Africa America appears areas Asia atoms average bacteria believe birds body carbon carbon dioxide cause cent century cephalic index changes characters chromosomes civilization climate color common copper crops cultivated culture danger Darwin death rate destroy disease domestic early earth eggs environment Europe European evidence fact feeble-minded females fish forms germ cells given heredity human Ibid important increase Indians individual inheritance insane insects iron killed known land later light living male man's marriage metals miles natural selection nature Negro neolithic organisms ovum oxygen Pará rubber tree parasites physical population possible pounds present problems produced R. S. LULL race seeds seems social South South America species square mile supply T. H. MORGAN temperature things thousand tion to-day trees tropics types United wild woman women