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Updated: May 13, 2025
Every molecule of matter in the whole universe is swinging to and fro; every particle of ether which fills space is in jelly-like vibration. Light is one kind of motion, heat another, electricity another, magnetism another, sound another.
We now think of the body as composed of minute corpuscles rotating around one another within the atom at relatively immense distances. We know that in similar manner the atoms vibrate in the molecule, the molecules in the cell, the cells in the organ and the organs in the body; the whole capable of being changed by a change in the vibrations of its particles.
But in her he had seen something that was more than beauty, something that for a flashing moment had set stirring every molecule in his being. He had felt the desire to rest his hand upon her shining hair! He turned off into a winding path that led into the thick poplars, restraining an inclination to look back in the direction of the Otto camp.
It is quite impotent to cease sending out the impulses however little comes in return; hence the aggregate motion becomes less and less active, until finally the molecule is moving so sluggishly that when it collides with its fellow cohesion is able to hold it there. Cohesion, then, has won the battle, and the gas has become a liquid.
Again, it is certain that no molecule can perform two sets of vibrations, two separate movements, at the same time, any more than it can be in two places at the same time. When a band of music is playing, the molecule is supposed to make a complex vibration, a resultant motion of all acting influences, which the ear is supposed to analyze.
Their monstrous pilot then set the bar and advanced both levers of the dual power control out to the extreme limit of their travel. There was no sense of motion or of acceleration, since the new system of propulsion acted upon every molecule of matter within the radius of activity of the bar, which had been set to include the entire hull.
Is it not certain that the question is, How does the motion get from one to the other, whether there be a wire or not? If there be a wire, it is plain that there is motion in it, for it is heated its whole length, and heat is known to be a mode of motion, and every molecule which is thus heated must have had some antecedent motions.
The argument is now a well-known one, and is thus stated by Professor Maxwell in his presidential address before the British Association for the Advancement of Science, 1870: "None of the processes of nature, since the time when nature began, have produced the slightest difference in the properties of any molecule.
Recall the kind of action that constitutes heat, that it is not translatory action in any degree, but vibratory, in the sense of a change of form of an elastic body, and this, too, of the atoms that make up the molecule of whatever sort. Each atom is so far independent of every other atom in the molecule that it can vibrate in this way, else it could not be heated.
And in the case of unresolvable or "elementary" substance, the molecule and the atom are not necessarily the same.
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