The New Encyclopaedia Britannica, Volume 6Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 33
... core might give rise to the electric current respon- sible for the geomagnetic field . He assumed that some thermal convections are maintained within the core by the energy supply from radioactive substances and that the rising and ...
... core might give rise to the electric current respon- sible for the geomagnetic field . He assumed that some thermal convections are maintained within the core by the energy supply from radioactive substances and that the rising and ...
Page 35
... core and man- tle , then the core as a whole and the deeper part of the mantle are tightly connected together . To reach a steady state under these conditions , the angular velocity of eastward rotation is the largest in the deep core ...
... core and man- tle , then the core as a whole and the deeper part of the mantle are tightly connected together . To reach a steady state under these conditions , the angular velocity of eastward rotation is the largest in the deep core ...
Page 55
... core is assumed to consist mainly of iron ( see further , EARTH , MAGNETIC FIELD OF ) . All available evidence thus supports the hypothesis that the core is principally composed of metallic iron , but it is probable that additional ...
... core is assumed to consist mainly of iron ( see further , EARTH , MAGNETIC FIELD OF ) . All available evidence thus supports the hypothesis that the core is principally composed of metallic iron , but it is probable that additional ...
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19th century Africa agriculture America Azande Basin British Byzantine capital Catholic central centre changes Chinese Christian Constantinople continental continued core crinoids crust cubic centimetre cultural density depth Earth earthquakes East African Eastern echinoderms eclipse economic economists ecosystem Ecuador ecumenical equations Europe export feet forecasting fossil geoid geological geomagnetic geosyncline German gravity groups holothurians important income increase Indian industry investment isostasy Kenya kilometres labour Lake Lake Victoria land magnetic field major mantle ment metres miles modern Mombasa Monophysite Moon mountains movement nomic North northern ocean organization Orthodox Church output Paleozoic patriarch percent peridotite period planning political population Precambrian production region River rocks Russian sector seismic slope social society solar South Soviet species structure surface Tanzania temperature theory tion trade traditional tube feet Uganda underdeveloped countries United waves West Western