| Show CALORIC PRODUCED iby MOTION M foucault foncault of paris has jigs constructed an apparatus to demonstrate that motion produces caloric A thick bar of iron bent info into a horseshoe horse honse shoe form is converted into an electromagnet electro magnet between its two extremities N i supported a disk of copper lo 10 a rapid rotary motion thre hundred or four buil bull ired fired revolutions a second is is communicated by the llie intervention of toothed bealing ge aling so long on as us the horseshoe horse shoe is not electro the disk turns with ease but so oon soon as the horseshoe horse shoe is a placed in communication with a battery and thereby converted into an all electromagnet electro magil magli magnet et P great resistance to the tile fu futher ther revolution of the disk is made mada manifest if not notwithstanding this resist desist lance ance the file disk dit is turned during a minute or BO so and a thermometer be placed upon the disk the tho mercury iner cury will ascend to sixty or eighty degiers degi eta eft centigrade although the toot lied rearing gearing axles axle etc remain at the ordinary temperature |
