A History of MechanicsCourier Corporation, 7 лист. 2012 р. - 688 стор. "A remarkable work which will remain a document of the first rank for the historian of mechanics." — Louis de Broglie |
З цієї книги
Результати 1-5 із 87
... directions, they will necessarily form a mass which is symmetrical. Because there will result an addition of parts which are equal in all directions, and the surface which defines the mass produced will be everywhere equidistant from ...
... direction, whether the fluid is falling somewhere or whether it is driven from one place to another.” From this starting point, the following propositions derive in a logical sequence. Proposition I. — If a surface is intersected by a ...
... direction or the other. Now let weights be suspended at some points of the beam——say at 6 and e. The beam will take up a new position of equilibrium after the weights have been hung on. Archimedes has shown, in this case as well, that ...
... direction as a measure of the eifect of a weight, which was usually placed at the end of a lever and described a circle in consequence. Thus his statics stems, implicitly, from the principle of virtual work. The word work, taken in the ...
... direction is b' h'. On the other hand if the body starts from a and falls along anflarc 63, which is equal to Fig' 9 the arc bh, the effective vertical path A is cz' and is greater than b' h'. Thus the descent bh, equal to the descent ...