A Treatise on Magnetism Designed for the Use of Students in the University |
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Page xiv
... parallel to the local dip , and is struck repeatedly with a hammer ; it becomes a magnet , with red magnetism in the end which dipped ( in northern magnetic latitudes ) , and this magnetism does not change with change of the magnet's ...
... parallel to the local dip , and is struck repeatedly with a hammer ; it becomes a magnet , with red magnetism in the end which dipped ( in northern magnetic latitudes ) , and this magnetism does not change with change of the magnet's ...
Page 5
... parallel lines . In all these cases of suspension , the torsion - power of the support is very small , and there is an almost total absence of fric- tion properly so called . 7. The opposite ends of a magnet have different properties ...
... parallel lines . In all these cases of suspension , the torsion - power of the support is very small , and there is an almost total absence of fric- tion properly so called . 7. The opposite ends of a magnet have different properties ...
Page 13
... to them by the Earth's magnetic power , and therefore parallel , with their red ends pointing to the north . In this state , the needle A is maintained vigor- 7 ously in its position ; and , if it QUALITY OF THE EARTH'S MAGNETISM . 13.
... to them by the Earth's magnetic power , and therefore parallel , with their red ends pointing to the north . In this state , the needle A is maintained vigor- 7 ously in its position ; and , if it QUALITY OF THE EARTH'S MAGNETISM . 13.
Page 18
... parallel to the magnet but in the opposite direction . Thus it is seen that the action of a pole of the magnet is not limited to the direction longitudinal from the pole or even transversal from the pole , but that it is equally ...
... parallel to the magnet but in the opposite direction . Thus it is seen that the action of a pole of the magnet is not limited to the direction longitudinal from the pole or even transversal from the pole , but that it is equally ...
Page 39
... a part acting endways of the needle and a part parallel to c gives for the latter part -m - 1 S.ẞdy.c ( c2 + 2cy cos 0+ y2 ) 2 which produces the angular momentum opposite watch- hands y.sin 0. EARTH'S ACTION ON A NEEDLE . 39.
... a part acting endways of the needle and a part parallel to c gives for the latter part -m - 1 S.ẞdy.c ( c2 + 2cy cos 0+ y2 ) 2 which produces the angular momentum opposite watch- hands y.sin 0. EARTH'S ACTION ON A NEEDLE . 39.
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Common terms and phrases
angle angular momentum Astronomical Meridian attraction axis azimuth blue end blue magnetism blue pole broadside-on C₁ Cambridge cloth College compass compass-needle cotan Crown 8vo curves deflexion deviation direction distance disturbed needle disturbing magnet Edition effect elementary end-on equal equations error experiment expression fcap Figure formulæ Greenwich horizontal action horizontal plane investigations latitude Law of Magnetism longitude magnet-power Magnetic Declination magnetic force magnetic meridian Magnetic Pole mass of iron measured moment of inertia netism North Magnetic Pole numerical value observations obtained opposite position produced proportion red end red magnetism red pole remarked represented repulsion rotation Royal Observatory sensibly ship ship's head statical force exerted steel magnet supposed suspension-thread term terrestrial horizontal force terrestrial magnetism theodolite theory tion torsion-power total force treatise vertical force vibration wire
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