Mechanics' Magazine, Volume 66Knight & Lacey, 1857 |
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action apparatus appears applicable arms arrangement bars body boilers carried cause closed combination communication connected consists construction containing cutting cylinder Dated Aug Dated July Dated June Dated Sept described direction distance effect employed engineer equal experiments fabrics fact feet fire fitted fixed force frame furnace George give given glass heat Henry Improvements invention iron James John length letter lever London lower machine machinery Magazine manufacture March materials matter means Mechanics ments metal method mode motion moving nature Newton notice object obtained operation ordinary pass patent piece pipe placed plate portion position practical preparing present pressure principle printing produced provements rail railway raised received relates result rollers screw ships side similar steam substances surface Thomas tion tube valve vessel weight wheels whole wire wood
Popular passages
Page 347 - 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 into it.
Page 404 - ... if we begin with certainties, we shall end in doubts ; but if we begin with doubts, and are patient in them, we shall end in certainties.
Page 399 - For thou, Lord, hast made me glad through thy works: and I will rejoice in giving praise for the operations of thy hands. 5 O Lord, how glorious are thy works : thy thoughts are very deep. 6 An unwise man doth not well consider this: and a fool doth not understand it.
Page 377 - The turbine wheel, for example, acts on the principle of reaction, according to Newton's third law of motion that action and reaction are equal and opposite.
Page 479 - The third sub-case remains, namely, that the power is always existing around the sun and through infinite space, whether secondary bodies be there to be acted upon by gravitation or not: and not only around the sun, but around every particle of matter which has existence. This case of a constant necessary condition to action in space, when as respects the sun the earth is not in place, and of a certain gravitating action as the result of that previous condition when the earth...
Page 280 - I think it is imperfect and insufficient ; if it admits these things, or any part of them, then it prepares the natural philosopher to look for effects and conditions as yet unknown, and is open to any degree of development of the consequences and relations of power : by denying, it opposes a dogmatic barrier to improvement ; by ignoring, it becomes in many respects an inert thing, often much in the way; by admitting, it rises to the dignity of a stimulus to investigation, a pilot to human science.
Page 404 - Admission to its sanctuary, and to the privileges and feelings of a votary, is only to be gained by one means, — a sound and sufficient knowledge of mathematics, the great instrument of all exact inquiry, without which no man can ever make such advances in this or any other of the higher departments of science, as can entitle him to form an independent opinion on any subject of discussion within their range.
Page 402 - is any cause which alters or tends to alter a body's state of rest or of uniform motion in a straight line...
Page 101 - The Association for the Prevention of Steam Boiler Explosions, and for effecting Economy in the Raising and Use of Steam.
Page 479 - Newton looked at in gravity; is, in philosophical respects, the same as that admitted by all in regard to light, heat, and radiant phenomena ; and (in a sense even more general and extensive) is that now driven upon our attention in an especially forcible and instructive manner, by the phenomena of electricity and magnetism, because of their dependence on dual forms of power.