Properties of Matter

الغلاف الأمامي
A. and C. Black, 1894 - 340 من الصفحات
 

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مقاطع مشهورة

الصفحة 76 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it is compelled by forces to change that state.
الصفحة 117 - It is inconceivable that inanimate brute matter should without the mediation of something else, which is not material, operate upon and affect other matter without mutual contact, as it must be if gravitation, in the sense of Epicurus, be essential and inherent in it.
الصفحة 117 - You sometimes speak of gravity as essential and inherent to matter. Pray do not ascribe that notion to me; for the cause of gravity is what I do not pretend to know, and therefore would take more time to consider of it.
الصفحة 147 - The number of equal spaces in the shorter leg, that contained the same parcel of air diversely extended. B. The height of the mercurial cylinder in the longer leg, that compressed the air into those dimensions. C. The height of the mercurial cylinder, that counterbalanced the pressure of the atmosphere. D. The aggregate of the two last columns, B and C, exhibiting the pressure sustained by the included air. E. What that pressure should be according to the hypothesis, that supposes the pressures and...
الصفحة 291 - Spencer records his conviction that 'the chemical atoms are produced from the true or physical atoms by processes of evolution under conditions which chemistry has not yet been able to produce.
الصفحة 144 - A Defence of the Doctrine touching the spring and weight of the air ... against the objections of Franciscus Linus, etc.
الصفحة 88 - To every action there is always an equal and contrary reaction ; or the mutual actions of any two bodies are always equal and oppositely directed.
الصفحة 84 - The rate of change of momentum is proportional to the impressed force, and takes place in the direction in which the force acts.
الصفحة 117 - That gravity should be innate, inherent, and essential to matter, so that one body may act upon another at a distance, through a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to another, is to me so great an absurdity, that I believe no man who has in philosophical matters a competent faculty of thinking can ever fall iuto it. Gravity must be caused by an agent acting constantly according to certain laws; but whether this agent...

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