Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity . nd the motion iscontinued in the same direction. 376. Electro-Dynamic Revolving Rectangle.— Rectangular coils may be used in place of cir-cular ones, with the same result, asin the instrument represented in , which is analogous to the onedescribed in 193. The inner rect-angle revolves in the same manneras the coil B in the instrument lastdescribed, and the rotation is morerapid than with the circular consequence of the width of therecta
Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity . nd the motion iscontinued in the same direction. 376. Electro-Dynamic Revolving Rectangle.— Rectangular coils may be used in place of cir-cular ones, with the same result, asin the instrument represented in , which is analogous to the onedescribed in 193. The inner rect-angle revolves in the same manneras the coil B in the instrument lastdescribed, and the rotation is morerapid than with the circular consequence of the width of therectangular coils being less than theirheight, the sides of the interior oneaie near those of the other duringthe whole revolution. This cir-cumstance is the occasion of its greater speed. 377. Instrument for showing the RevolutionOF Mercury.—The instrument represented in , is designed to exhibit the revolution of mercurywithin a helix. The mercury is contained in a brass<up, within which is fixed a small watch brass is covered by this, except at the upperedge, where a ring is exposed, which is
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectmagnetism, bookyear18
