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الكتب الكتب 1 - 10 من 12 في... will be transmitted by means of the fixed pulley d, to the point b ; and as the....
" ... will be transmitted by means of the fixed pulley d, to the point b ; and as the point e, on which the weight acts, is equally distant... "
A Treatise of Mechanics, Theoretical, Practical, and Descriptive - الصفحة 85
بواسطة Olinthus Gregory - 1815 - عدد الصفحات: 58
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An Analysis of a Course of Lectures on the Principles of Natural Philosophy ...

George Atwood - 1784 - عدد الصفحات: 265
...lower block. XXIX. On a fyftem of moveable pullies, in which a feparate firing goes round each pully, there will be an equilibrium when the power is to the weight, as unity to that power of two of which the index is the number of moveable pullies. It is to be obferved...
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Lectures on Natural and Experimental Philosophy: Considered in It ..., المجلد 3

George Adams - 1794
...concerning this plane will principally apply to the line when in this lituation. When fo fituated, there will be an equilibrium, 'when the power is to the weight as the height of the plane is to it's biife. In other words, the mechanical advantage is in proportion as...
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The economy of nature explained and illustrated on the principles of modern ...

George Gregory - 1798
...body is drawn, is in the direction D e, parallel to the inclined plane. When thus fituated therefore, there will be an equilibrium, when the power is to the weight of the body, as the height of the plane is to its bafe. In other words, the mechanical advantage gained...
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The Panorama of Science and Art: Embracing the Sciences of ..., المجلد 1

James Smith - 1815
...its operations arc quick, and it is exerted or resides in a small compass. In every species of lever there will be an equilibrium, when the power is to the weight as the distance of the weight from the fulcrum is to the distance of the power from the fulcrum. Effects of...
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British Encyclopedia: Or, Dictionary of Arts and Sciences ..., المجلد 7

William Nicholson - 1821
...the nail by the time that the nail is drawn out Hence it is evident, that in every species of lever there will be an equilibrium, when the power is to the weight as the distance of the weight from the fulcrum is to the distance of the power from the fulcrum. In experiments...
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American Edition of the British Encyclopedia: Or, Dictionary of ..., المجلد 7

William Nicholson - 1821
...the nail byttie time that the nail is drawn out. Hence it is evident, that in every species of lever there will be an equilibrium, when the power is to the weight as the distance of the weight from the fulcrum is to the distance of the power from the fulcrum. In experiments...
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Encyclopaedia Britannica; Or A Dictionary of Arts, Sciences, and ..., المجلد 13

1823
...their threads, that is, P :p= J£ : Í. or P varies яя — . PROP. II. 535. In the endless screw, there will be an equilibrium when the power is to the weight, as the distance of the threads multiplied by the radius of the axle, is to the distance of the power from...
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A companion to the Scientific dialogues; or, The tutor's assistant ..., المجلد 7

Jeremiah Joyce - 1824 - عدد الصفحات: 205
...there will be an equilibrium, if the power is equal to half the weight only. 39. In the inclined plane there will be an equilibrium, when the power is to the weight as the height of the plane is to the length. 40. In the wedge, the power will be to the weight as half the...
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The Register of arts, and journal of patent inventions, ed. by L. Herbert

Luke Hebert - 1829
...PRACTICAL. By GG WARD, Michine Maker. ( Continued from p. 93.} PROPOSITION IX. In the single moveable pulley there will be an equilibrium, when the power is to the weight as 1 .' 2. For the pulley ab (Fig. 19) is otovionsly reducible to a lever of the second order, whose fulcrum...
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The Register of Arts, and Journal of Patent Inventions, المجلد 3

Luke Herbert - 1829
...PRACTICAL. By GG WiRD, Michine Maker. ( Continued/ram p. 93.) PROPOSITION IX. In the single moveable pulley there will be an equilibrium, when the power is to the weight as 1 : 2. For the pulley ab (Fig. 19) is obviously reducible to a lever of the second order, whose fulcrunj...
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