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New Experiments on Electricity, wherein the causes of thunder and lightning as well as the constant state of positive or negative electricity in the air or clouds, are explained; ... Also a description of a doubler of electricity
FIRST EDITION. Bennet was the inventor of the gold-leaf electroscope which bears his name (first described in the Phil. Trans.), "which is considered the most sensitive and the most important of all known instruments for detecting the presence of electricity" (Mottelay). He also invented the electrical doubler, designed to increase small quantities of electricity by continually doubling them, a process mechanised in 1788 by the natural philosopher William Nicholson using a winch to turn a metal disc round a central metal ball. Bennet claimed he had been on the point of mechanising his own apparatus when Nicholson announced his scheme to the Royal Society. Bennet was also the first to observe the contact electrification of metals.Wheeler Gift 552. This is apparently the only edition of his only book. Bennet was the curate of Wirksworth in Derbyshire, and was elected FRS in the year in which this book was published.8vo, 2 leaves, pp. (vi) list of subscribers, (v)-xvii, 18-141, folding engraved frontispiece and 3 folding plates. Contemporary half calf, marbled sides, brown morocco label on spine. Label chipped, short cracks at ends of upper joint, tips of corners slightly worn, a little offsetting from the frontispiece, but a nice, fresh copy.
      [Bookseller: Nigel Phillips]
Last Found On: 2015-12-15           Check availability:      Direct From Bookseller    

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