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Updated: May 18, 2025
Again, the spinning of a potter's wheel will easily infect a man suffering from this disease with its own giddiness. For the sight of its rotations weakens his already feeble mind, and the potter is far more effective than the magician for casting epileptics into convulsions. You had no reason for demanding that I should produce these slaves.
"You mentioned some long-continued scientific investigations which I assumed referred to the yield of crops. What were they?" "I meant such investigations as those at Rothamsted and also those conducted at Pennsylvania State College. I have some of the exact data here in my note book. "In 1848, Sir John Lawes and Sir Henry Gilbert began at Rothamsted, England, two four-year rotations.
He read much about it; and in the months of July, August, and September he wrote a 'history of the progress of electro-magnetism, which he published in Thomson's 'Annals of Philosophy. Soon afterwards he took up the subject of 'Magnetic Rotations, and on the morning of Christmas-day, 1821, he called his wife to witness, for the first time, the revolution of a magnetic needle round an electric current.
I mark ten Mason-bees with red, which will enable me to distinguish them from those who returned on the day before and from those who may still return with the white spot uneffaced. The same precautions, the same rotations, the same localities as on the first occasion; only, I make no rotation on the way, confining myself to swinging my box round on leaving and on arriving.
One of the Catherine-wheels was also prevailed upon to give a few languid rotations on its axis, and some of the squibs, which had unfortunately got damp, condescended, after being inserted bodily into the lantern, to go off.
The more or less extensive fusion of the tibia with the fibula and the radius with the ulna in the ungulated mammals, whose habits require only partial rotations of the limbs, is a fact of like meaning.
The conversion of woodland into pasturage, of pasture into plough land, of swamp or of shallow sea into dry ground, the rotations of cultivated crops, must prove fatal to millions of living things upon every rood of surface thus deranged by man, and must, at the same time, more or less fully compensate this destruction of life by promoting the growth and multiplication of other tribes equally minute in dimensions.
For such a ratio may be resolved into a ratio of two simple ratios. To see this, let us choose the periods of two definite planets say, Earth and Jupiter. During one rotation of Jupiter round the sun the earth circles 12 times round it. Measured in this time-scale, the earth needs for one of her rotations 1 / 12 of a Jupiter-year.
'Resolved, That Michael Faraday be engaged to fill the situation lately occupied by Mr. Payne, on the same terms. Faraday loved this word and employed it to the last; he had an intense dislike to the modern term physicist. To whom I am indebted for a copy of the original letter. Early researches: magnetic rotations: liquefaction of gases: heavy glass: Charles Anderson: contributions to physics.
In like manner, the implication is the same, that if there be rotations in the ether they must be produced by molecular rotation, and there must be as many rotations per second in the ether as there are molecular rotations that produce them.
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