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Updated: May 13, 2025
When pith balls are brought near to either of the conductors, they become electrified with the opposite electricity to it; either receiving a share from the already electrified atmosphere by conduction, or acted upon by the direct inductive influence of the conductor itself: they are then attracted by the conductor to which they are in opposition; or, if withdrawn in their electrified state, they will be attracted by any other oppositely charged body.
In like manner the hand, if brought near enough to the conductor, receives or gives an electric discharge; now we have no evidence that a charged conductor can be suddenly discharged unless by the approach of a body oppositely electrified.
If the bird flies toward the ground, flapping its wings, it compresses the air below them, and, supposing that the wing feathers can bend aside, the experiments of Exner show that by the friction the upper side of one feather and the lower side of that which is just above are electrified oppositely, the more powerfully as the rubbing is greater, which always causes them to resume the normal position.
The primary PP is wound in two parts, and oppositely, upon a wooden spool W, and the four ends are led out of the oil through hard rubber tubes tt. The ends of the secondary T1 T1 are also led out of the oil through rubber tubes t1 t1 of great thickness.
On the other hand, Cornish was calling at the Trescott house with increasing frequency. Mrs. Trescott was decidedly favorable to him, Alice a pronounced partisan of Elkins; and Josie vibrated between the two oppositely charged atmospheres, calmly non-committal, and apparently pleased with both. But the affair was affecting our relations.
Her children, too, influenced her, though very oppositely, for Janet was found preparing to start for River Hollow, and on being told that she must wait, to go with her mother, till after Church, declared defiantly that "she saw no sense in staying at home to hear Rigdum when she did not know how ill Allen might be." "You would not have said that to grandmamma," said Carey.
It was found later that when the two bodies are rubbed together they become oppositely electrified, and that the two electricities are always generated in equal quantity; so that if the two bodies are held in contact after the rubbing has ceased the two electricities come together again and the electrical phenomena disappear. They have been added together, and the result is zero.
We cannot have a magnet with one pole: if we break a natural loadstone into a thousand pieces, each piece will have its two oppositely electrified poles complete within itself. In the voltaic circuit, again, we cannot have one current without its opposite. In the ordinary electric machine, the glass cylinder or plate, and the rubber, acquire opposite electricities.
It was supposed to combine the light of two distinct bodies, one, of a gaseous nature, moving rapidly away from the earth, the other, giving a more sunlike spectrum, approaching it with even higher speed. The relative velocity determined at Potsdam for these oppositely flying masses amounted to 550 miles a second. And this prodigious rate of separation was fully maintained during six weeks!
This ingenious scheme was designed, not merely to complete, but to supersede that of Laplace, which, undoubtedly, through the inclusion by our system of oppositely directed rotations, forfeits its claim simply and singly to account for the fundamental peculiarities of its structure.
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