The New Encyclopaedia Britannica, Volume 6Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 27
... field was not achieved until a German physicist , Carl Fried- rich Gauss , published " Allgemeine Theorie des Erd- magnetismus " in 1838 , in which his mathematical analy ... fields , including telluric currents Earth , Magnetic Field of 27.
... field was not achieved until a German physicist , Carl Fried- rich Gauss , published " Allgemeine Theorie des Erd- magnetismus " in 1838 , in which his mathematical analy ... fields , including telluric currents Earth , Magnetic Field of 27.
Page 33
... field , but many of them are unable to account for even the present geomag- netic field . A U.S. geophysicist , Walter M. Elsasser , in 1939 proposed that a thermoelectric electromotive force in the core might give rise to the electric ...
... field , but many of them are unable to account for even the present geomag- netic field . A U.S. geophysicist , Walter M. Elsasser , in 1939 proposed that a thermoelectric electromotive force in the core might give rise to the electric ...
Page 34
... field B. and the zonal flow v1 results in a toroi- dal magnetic field T1 , which is axially symmetric about the rotation axis . The dynamo process between T1 and v2 generates a toroidal field T2 whose longitudinal symme- tricity is ...
... field B. and the zonal flow v1 results in a toroi- dal magnetic field T1 , which is axially symmetric about the rotation axis . The dynamo process between T1 and v2 generates a toroidal field T2 whose longitudinal symme- tricity is ...
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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