ما يقوله الناس - كتابة مراجعة
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after-strain angles applied axes axis beam Bernoulli body calculated Calculus of Variations Cauchy Cauchy's coefficients cohesion compression considered constant corps solides curve cylindrical d'une Daniel Bernoulli deduced deflection denote deux differential equation dilatation direction Duhamel Eaton Hodgkinson elastic limit elastica élastique entitled équations equilibrium Euler experimental experiments expression fait flexure force formulae function given Hodgkinson Hooke's Law hypothesis integrals investigation iron James Bernoulli Lagerhjelm Lagrange Lamé lamina longitudinal mathematical Mecanique memoir method modulus molecular molecules motion mouvement Navier neutral line obtained occupies pages paper plane plate Poisson pression principal prism problem produced qu'il ratio rectangular refers remarks resistance rupture Saint-Venant Savart shews strain strength Strength of Materials stress stretch stretch-modulus suppose surface temperature theoretical theory of elasticity torsion traction tractive load transverse velocity vibrations volume Wertheim wire
الصفحة 14 - Now the smallest Particles of Matter may cohere by the strongest Attractions, and compose bigger Particles of weaker Virtue; and many of these may cohere and compose bigger Particles whose Virtue is still weaker, and so on for divers Successions, until the Progression end in the biggest Particles on which the Operations in Chymistry, and the Colours of natural Bodies depend, and which by cohering compose Bodies of a sensible Magnitude.
الصفحة 598 - ... ses particules nagent en quelque sorte au milieu d'un fluide. Si ce fluide n'est pas la cause unique de tous les faits observables, il doit au moins les modifier, les propager, compliquer leurs lois. Il n'est donc plus possible d'arriver à une explication rationnelle et complote des phénomènes de la nature physique, sans faire intervenir cet agent, dont la présence est inévitable.
الصفحة 13 - For it is well known that bodies act one upon another by the attractions of gravity, magnetism, and electricity; and these instances show the tenor and course of nature, and make it not improbable but that there may be more attractive powers than these. For Nature is very consonant and conformable to herself.
الصفحة 14 - And thus Nature will be very conformable to her self and very simple, performing all the great Motions of the heavenly Bodies by the Attraction of Gravity which intercedes those Bodies, and almost all the small ones of their Particles by some other attractive and repelling Powers which intercede the Particles.
الصفحة 15 - Fermentation, and the Cohesion of Bodies. These Principles I consider not as occult Qualities, supposed to result from the specifick Forms of Things, but as general Laws of Nature by which the Things themselves are formed; their Truth appearing to us by Phenomena, though their Causes be not yet discovered. For these are manifest qualities and their Causes only are occult.
الصفحة 82 - The modulus of the elasticity of any substance is a column of the same substance, capable of producing a pressure on its base which is to the weight causing a certain degree of compression, as the length of the substance is to the diminution of its length.
الصفحة 14 - And how such very hard Particles which are only laid together and touch only in a few Points, can stick together, and that so firmly as they do, without the assistance of something which causes them to be attracted or press'd towards one another, is very difficult to conceive.