Glasgow flint) is of strument anew first charged with negative electricity. The corresponding In the Carre machine, represented in Fig. 3, this difliculty good quality, the insulation of the bottles may be so perfect spring, i, is then charged with positive electricity, which it that the electric… … is necessary. comes null. If the two springs are at the same time sub- ■*'»>■»■ Mr. Richard Hanks, a coal miner, living near Galesburg, mitted to the influence of two conductors at different ten- is sought to be avoided. The disk. A, of ebonite or glass 111., is reported to have dug out of the…
Patents · Improved · Iron · Consists · Glue · Scientific American · Improved fire · High pressure · Specific heat · Short distance · Electric light · Letters patent · Wrought iron · American supplement · Bent pipe
Internet Archive · Public domain (published before 1931). Free to use for anything.