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 326
... magnetic field . The equations of electrodynamics require that moving charges spiral around the geomagnetic lines of force , following these lines from the Northern Hemi- sphere to the Southern as they loop far out into space . In an ...
... magnetic field . The equations of electrodynamics require that moving charges spiral around the geomagnetic lines of force , following these lines from the Northern Hemi- sphere to the Southern as they loop far out into space . In an ...
Page 374
... magnetic field , and rockets have been shot into the polar upper atmosphere to gain data about the char- acteristics of the auroral particle precipitation . An ex- tensive international network of auroral and magnetic observatories has ...
... magnetic field , and rockets have been shot into the polar upper atmosphere to gain data about the char- acteristics of the auroral particle precipitation . An ex- tensive international network of auroral and magnetic observatories has ...
Page 377
... magnetic disturbances under the auroral oval are produced by a strongly con- centrated ( about 1,000,000 amperes ) electric current flowing westward along the oval at about the level where the auroral curtain is brightest ( 110 ...
... magnetic disturbances under the auroral oval are produced by a strongly con- centrated ( about 1,000,000 amperes ) electric current flowing westward along the oval at about the level where the auroral curtain is brightest ( 110 ...
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The New Encyclopaedia Britannica, Volumes 1-10 Encyclopaedia Britannica Publishers, Inc. Staff No preview available - 1974 |
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