A short view of electricity / [Benjamin Wilson].

  • Benjamin Wilson
Date:
1780
Catalogue details

Licence: Public Domain Mark

Credit: A short view of electricity / [Benjamin Wilson]. Source: Wellcome Collection.

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    moved, in a very little time they change to a minus Hate: becaufe the two ends of the wood, from the nature of their form, had buffered part of the natural quantity to efcape into the air, while the glafs was held over the wood. But now the glafs being re- moved, the over-charge in the balls will of courfe return, and equally diffufe itfelf into the wood again : and becaufe this over- charge, even with the addition of fome part of the natural quan- tity belonging to the balls, is found infufficient to balance the lofs fuftained, the wood, threads and balls muft be in a minus Hate* EXPERIMENT VII. Fig. 6. Excited glafs, held near the end B, parts with a quantity of fluid into it : but that quantity will be lefs than the quantity parted with into a body differently formed, as in experiment III. In this cafe, glafs repels the balls, but the balls do not repel one another to fo great a diflance as in the third experiment : be- caufe here the fluid efcapes more readily at the two ends, from the nature of their form : whereas, in the other cafe, (experiment III.) one of the ends, being formed differently, refills more, and con- fequently fuffers lefs of the fluid to efcape by it. EXPERIMENT VIII. In this experiment three bodies. A, B, C, are placed in a line near to, or in contact with, each other. The middle body A is pointed at each end; but the extreme bodies B and C are. rounded at one end, and pointed at the other; and have their pointed ends ©ppofed to the pointed ends of A, F l Cr *
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