British Almanac and Family CyclopaediaStationers' Company, 1871 |
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1 - 3 találat összesen 31 találatból.
7. oldal
... direction when poised upon its centre of gravity , and the peculiar pro- perty that all magnets in such case take precisely the same direction in the same locality , were early taken advantage of as a general and reliable guide in ...
... direction when poised upon its centre of gravity , and the peculiar pro- perty that all magnets in such case take precisely the same direction in the same locality , were early taken advantage of as a general and reliable guide in ...
15. oldal
... direction to a magnetic needle suspended by its centre of gravity , is termed the earth's magnetic force , in so far ... directions parallel to the coordinate axes . Each portion of magnetic fluid , while it repels one pole of the needle ...
... direction to a magnetic needle suspended by its centre of gravity , is termed the earth's magnetic force , in so far ... directions parallel to the coordinate axes . Each portion of magnetic fluid , while it repels one pole of the needle ...
19. oldal
... directions north , west , and vertically downwards , are respectively X = - - dV rdu ' Y = - dV r dλ sin u dV Ꮓ ... direction ; 8 the declination from the true north , + west - east ; and i the angle of depression , or dip ; these ...
... directions north , west , and vertically downwards , are respectively X = - - dV rdu ' Y = - dV r dλ sin u dV Ꮓ ... direction ; 8 the declination from the true north , + west - east ; and i the angle of depression , or dip ; these ...
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