A Treatise on Magnetism Designed for the Use of Students in the University |
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Page ix
... whole length ; being entirely red magnetism on one side of the center , and entirely blue on the other side , with similar laws of distribution . Defini- tion of the " magnet - power " of a magnet 21. Investigation of the action of a ...
... whole length ; being entirely red magnetism on one side of the center , and entirely blue on the other side , with similar laws of distribution . Defini- tion of the " magnet - power " of a magnet 21. Investigation of the action of a ...
Page 2
... whole Earth acts as a combination of magnets , and there is reason to think that the Sun and the Moon also act as magnets . 2. Our accurate knowledge of magnetism is limited to the magnetism of iron , steel , and the Earth , to which ...
... whole Earth acts as a combination of magnets , and there is reason to think that the Sun and the Moon also act as magnets . 2. Our accurate knowledge of magnetism is limited to the magnetism of iron , steel , and the Earth , to which ...
Page 8
... whole length of the bar . For compass - needles , the same steel at spring - temper is found more advan- tageous . : It is possible , by various contrivances , as for instance by holding both the hand - magnets with the red ends ...
... whole length of the bar . For compass - needles , the same steel at spring - temper is found more advan- tageous . : It is possible , by various contrivances , as for instance by holding both the hand - magnets with the red ends ...
Page 10
... whole , there is no horizontal force tending to produce a motion of translation of the magnet ; and therefore , if there is one force tending to draw the red end towards the north , there is an equal force tending to draw the blue end ...
... whole , there is no horizontal force tending to produce a motion of translation of the magnet ; and therefore , if there is one force tending to draw the red end towards the north , there is an equal force tending to draw the blue end ...
Page 12
... whole length ) is nearest to the needle . This suggests the idea that the whole of the magnetism peculiar to that end of the magnet is collected into that one point : and that point is called a " Pole . " But in fact it is found that ...
... whole length ) is nearest to the needle . This suggests the idea that the whole of the magnetism peculiar to that end of the magnet is collected into that one point : and that point is called a " Pole . " But in fact it is found that ...
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Common terms and phrases
angle angular momentum applied Astronomical Meridian attraction axis azimuth blue end blue magnetism blue pole broadside-on compass compass-needle correction cotan Crown 8vo curves deflexion deviation distance disturbed needle disturbing magnet Earth's horizontal Edition effect end-on equal error experiment expression Fcap formulæ Greenwich hori horizontal action horizontal plane induced magnetism investigations latitude longitude magnet-power Magnetic Declination magnetic meridian Magnetic Pole mass of iron measured moment of inertia netism North Magnetic Pole numerical value observations obtained opposite phænomena position produced proportion red end red magnetism red pole remarked represented repulsion rotation Royal Observatory sensible ship ship's head soft iron steel magnet subpermanent magnetism supposed suspension-thread term terrestrial horizontal force terrestrial magnetism theodolite theory tion torsion-power total force treatise vertical force vibration wire zontal
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