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Updated: May 6, 2025
"The repellency between the cork ball and the shot is likewise destroyed, 1st, by sifting fine sand on it this does it gradually; 2dly, by breathing on it; 3dly, by making a smoke about it from burning wood; 4thly, by candle-light, even though the candle is at a foot distance these do it suddenly.
Smoke from dry rosin dropped on hot iron does not destroy the repellency, but is attracted by both shot and cork ball, forming proportionable atmospheres round them, making them look beautifully, somewhat like some of the figures in Burnet's or Whiston's Theory of the Earth. "N.B. This experiment should be made in a closet where the air is very still, or it will be apt to fail.
Electrify the shot, and the ball will be repelled to the distance of four or five inches, more or less, according to the quantity of electricity. When in this state, if you present to the shot the point of a long, slender shaft-bodkin, at six or eight inches distance, the repellency is instantly destroyed, and the cork flies to the shot.
Very slight disguises will, in all such cases, be found to be sufficient to veil the personal applicability of the instruction, so far as to divest it of all that is painful or disagreeable to the child. He may have a vague feeling that you mean him, but the feeling will not produce any effect of irritation or repellency.
If you present the point in the dark you will see, sometimes at a foot distance, and more, a light gather upon it like that of a fire-fly or glow-worm; the less sharp the point, the nearer you must bring it to observe the light; and at whatever distance you see the light, you may draw off the electrical fire and destroy the repellency.
When in this state, if you present to the shot the point of a long, slender, sharp bodkin, at six or eight inches distance, the repellency is instantly destroyed, and the cork flies to the shot. A blunt body must be brought within an inch and draw a spark to produce the same effect.
As the inheritance of kingdoms spoils kings, so this little fortune, though Chip could not finger a mill of it during his minority, all the while acted on him like a controlling magnet, inducing a strong repellency to good advice and a general exaltation of views, so that, when he came into possession of it, he was already a fast young man in almost every respect.
"The light of the sun thrown strongly upon both cork and shot by a looking-glass, for a long time together, does not impair the repellency in the least. This difference between firelight and sunlight is another thing that seems new and extraordinary to us.
If you present the point in the dark you will see, sometimes at a foot distance and more, a light gather upon it, like that of a firefly or glow-worm; the less sharp the point, the nearer you must bring it to observe the light; and at whatever distance you see the light you may draw off the electrical fire and destroy the repellency.
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