"But if, indeed, there be a nobler life in us than in these strangely moving atoms; if, indeed, there is an eternal difference between the fire which inhabits them, and that which animates us,--it must be shown, by each of us in his appointed place, not merely in the patience, but in the activity of our hope, not merely by our desire, but our labor, for the time when the dust of the generations of men shall be confirmed for foundations of the gates of the city of God."

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The hypothesis of molecular vortices is defined to be that which assumes - that each atom of matter consists of a nucleus or central point enveloped by an elastic atmosphere, which is retained in its position by attractive forces, and that the elasticity due to heat arises from the centrifugal force of those atmospheres revolving or oscillating about their nuclei or central points.According to this hypothesis, quantity of heat is the vis viva of the molecular revolutions or oscillations.

— William John Macquorn Rankine