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Is it not reasonable to think that by far the greater part is solid and dark, and that this immense globe is encompassed with a thin covering of that resplendent substance from which the sun would seem to derive the whole of his vivifying heat and energy?
--
Of the Sun; p. 64-5.

 

Agnes Mary Clerke

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Dark Energy. It can be found in the observable Universe. Found in ratios of 75% more than any other substance. Dark Energy. It can be found in religious extremists, in cheerleaders. To come to the conclusion that Dark signifies mean and malevolent would define 75% of the Universe as an evil force. Alternatively, to think that some cheerleaders don't have razors in their snatch is to be foolishly unarmed.

 

Tori Amos

 

Since therefore, as well those degrees of heat that are not painful, as those that are, can exist in a thinking substance; may we not conclude that external bodies are absolutely incapable of any degree of heat whatsoever?

 

George Berkely

 

I say, life and figure are distinct attributes of one substance, and as one and the same body may be transmuted into all kinds of figures; and as the perfecter figure comprehends that which is more imperfect; so one and the same body may be transmuted from one degree of life to another more perfect, which always comprehends in it the inferior. We have an example of figure in a triangular prism, which is the first figure of all right lined solid triangular prism, which is the first figure of all right lined solid bodies, where into a body is convertible; and from this into a cube, which is a perfecter figure, and comprehends in it a prism; from a cube it may be turned into a more perfect figure, which comes nearer to a globe, and from this into another, which is yet nearer; and so it ascends from one figure, more imperfect to another more perfect, ad infinitum; for here are no bounds; nor can it be said, this body cannot be changed into a perfecter figure: But the meaning is that that body consists of plane right lines; and this is always chageablee into a perfecter figure, and yet can never reach to the perfection of a globe, although it always approaches nearer unto it; the case is the same in diverse degrees of life, which have indeed a beginning, but no end; so that the creature is always capable of a farther and perfecter degree of life, ad infinitum, and yet can never attain to be equal with God; for he is still infinitely more perfect than a creature, in its highest elevation or perfection, even as a globe is the most perfect of all other figures, unto which none can approach.

 

Anne Conway

 

Another conspicuous failure of classical mechanics was with one aspect of the problem of radiation. ...Imagine a crowd of steel balls rolling about on a steel floor. ...There must... be a steady leakage of energy from... causes, such as air resistance and the friction of the floor, so the balls will eventually lose energy, and, after no great length of time, will be found standing at rest on the floor. The energy of their motion seems to have been lost... most of it has been transformed into heat. The classical mechanics predicts that this must happen; it shows that all energy of motion, except possibly a minute fraction of the whole, must be transformed into heat whenever such a transformation is physically possible. It is because of this that perpetual-motion machines are a practical impossibility.

 

James Jeans

 

The beauty and clearness of the dynamical theory, which asserts heat and light to be modes of motion, is at present obscured by two clouds. I. The first came into existence with the undulatory theory of light, and was dealt with by Fresnel and Dr. Thomas Young; it involved the question, how could the earth move through an elastic solid, such as essentially is the luminiferous ether? II. The second is the Maxwell–Boltzmann doctrine regarding the partition of energy.

 

Lord Kelvin