Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 350
ed from a height passingthrough a solenoid was obtained by the writer by means of an oscillograph. Sept., 1921.] Some Applicatioxs of Physics. 341 by Doctor Eckliardt, of the Bureau of Standards, and members ofhis unit, who have improved the earher conditions.* A tuning forkdriven in this way will… … 110 -^ + 23-^ --VWVV\AVVWWVVVVVWv\AMVW-3300 -^ 220 V. The first magnetic effects due to a shell passing through a sole-noid were obtained by the writer at the Aberdeen Proving Groundin August, 1920. They were recorded by means of a string gal-vanometer. At first it was thought necessary to use a…
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![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-388-170.webp)
