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Updated: May 5, 2025
Graves, in an AEgyptian idol cut out of Loadstone and found among the Mummies; which still retains its attraction, though probably taken out of the mine about two thousand years ago." The strangeness of the figure, and its being so close akin to his own nature, attracted him.
It also draws the lightest and driest of adjacent bodies, by reason of their tenuity and weakness; for it is not so strong nor so endued with weight and strength as to force much air and to act with violence and to have power over great bodies, as the magnet has. But what is the reason the air never draws a stone, nor wood, but iron only, to the loadstone?
In the Galileo Museum in Florence there is a terrella twenty-seven inches in diameter, of loadstone from Elba, constructed for Cosmo de' Medici. which I had hoped he had sent me, but to my trouble I find it is to present from him to my Lord Sandwich, but I will make a little use of it first, and then give it him. 3rd.
This favoured the desperate resolution Charles Darnay had begun to make, that he would go to Paris. Yes. Like the mariner in the old story, the winds and streams had driven him within the influence of the Loadstone Rock, and it was drawing him to itself, and he must go. Everything that arose before his mind drifted him on, faster and faster, more and more steadily, to the terrible attraction.
His mild blue eye was more melancholy than of wont; and yet, in spite of the trouble of his mind, he was unable to withdraw his looks from that bright loadstone of his affections, whose sadness seemed to sympathize with his own. At least, his heart would fain persuade him that there was mysterious sympathy in their mutual dejection.
Now, by the hidden and admirable power of the loadstones, the steel plates were put into motion, and consequently the gates were slowly drawn; however, not always, but when the said loadstone on the outside was removed, after which the steel was freed from its power, the two bunches of scordium being at the same time put at some distance, because it deadens the magnes and robs it of its attractive virtue.
You must know that some few hundred years ago, people discovered that a mineral called the loadstone, found in iron mines, had the quality of always pointing to the North, and they found, too, that any iron rubbed with it would possess the same quality. The needle Tom tells us of has undergone this operation.
"That Reason, said he, is not conclusive, for the Air immediately encompassing the Earth, is more sensible of its attractive Power, than that at a greater Distance, as you may be satisfied, in placing two Pieces of Iron, one near, and the other at a Distance from the Loadstone; the nearest Piece will be strongly attracted, while that at a greater Distance is but weakly affected.
They contained colorless, volatile essences, of the nature of which I shall only say that they were not poisons, phosphor and ammonia entered into some of them. There were also some very curious glass tubes, and a small pointed rod of iron, with a large lump of rock crystal, and another of amber, also a loadstone of great power.
We can not 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 can not have one current without its opposite. In the ordinary electric machine, the glass cylinder or plate, and the rubber, acquire opposite electricities.
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