A sequel to the Experiments and observations tending to illustrate the nature and properties of electricity : wherein it is presumed, by a series of experiments expresly for that purpose, that the source of the electrical power, and its manner of acting are demonstrated. Addressed to the Royal Society / by William Watson.

  • Watson, William, Sir, 1715-1787.
Date:
1746
Catalogue details

Licence: Public Domain Mark

Credit: A sequel to the Experiments and observations tending to illustrate the nature and properties of electricity : wherein it is presumed, by a series of experiments expresly for that purpose, that the source of the electrical power, and its manner of acting are demonstrated. Addressed to the Royal Society / by William Watson. Source: Wellcome Collection.

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    pid; that what, little more than a year ago, we conceived to be the ne plus ultra of our inquiries, is now regarded as mere rudiments. II. It were trefpaffing too much upon you, to recount the great number of experiments I have made ; lor which reafon I (hall only take notice of fuch, as are either in themfelves ftriking, or tend to illuftrate fome proportion. III. At the beginning of laft fum- mer, I caufeda machine to be made for electrical purpofes; the wheel whereof was four feet in diameter. In the peri¬ phery of this wheel, were cut four grooves, correfponding with four globes of ten inches diameter, which were dif- poied vertically at about three inches diftance from each other. One, two, or the whole number of thefe globes might be ufed at pleafure. They were mounted upon fpindles of two inches diameter, and their mean motion round their axis was about eleven hundred times