Annual Report of the Board of Regents of the Smithsonian InstitutionThe Institution, 1914 |
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Сторінка 166
... earth come next , the remaining planets being much less active . Although the earth comes only in the fourth rank , we will con- sider it first because we are better situated for examining its effects . At each instant we can consider ...
... earth come next , the remaining planets being much less active . Although the earth comes only in the fourth rank , we will con- sider it first because we are better situated for examining its effects . At each instant we can consider ...
Сторінка 209
... earth's magnetism , we must reckon with systems of magnetic or electric forces having their seats both below and above the earth's crust . There would also appear to be some evidence that in addi- tion to a motion of the magnetic poles ...
... earth's magnetism , we must reckon with systems of magnetic or electric forces having their seats both below and above the earth's crust . There would also appear to be some evidence that in addi- tion to a motion of the magnetic poles ...
Сторінка 211
... earth's total negative charge must be distributed through the larger sphere , and , if that be the whole earth itself , then for the chief term involved in the mag- netic potential , the surface of the sphere containing the positive ...
... earth's total negative charge must be distributed through the larger sphere , and , if that be the whole earth itself , then for the chief term involved in the mag- netic potential , the surface of the sphere containing the positive ...
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