Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity (1854)
Davis, Daniel · Boston : Palmer and Hall · leaf 144
ionto each frame through the distance of 90^, in whichthe heat would act, if two lamps were employed atright angles to the line of junction of the poles. 202. Thermo-Electric Arch rotating betweenTHE Poles of a U-Magnet. — Fig. 77 represents athermo-electric arch, mounted upon a brass… … 128 avis S MANUAL Fig. 11. the same principle as that of the Revolving Coil.Yet the different mode of reversing the cm-rentin this instrument occasions thearch to rotate in either directionwhen the lamp is in front of themagnet, and to remain at restwhen the lamp is on the otherside. A stand to…
