A History of Mechanics
Courier 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
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Once a projectile is thrown, the motive agency which assures the continuity of the
motion resides in the air which has been set in motion. Aristotle then assumes
that, in contrast to solid bodies, air spontaneously preserves the impulsion which
Thus he held that the air which was set in motion could not become the motive
agency of a projectile, whose motion was, on the contrary, easier in a vacuum
than in air. “ Whoever throws a projectile embodies in it a certain action, a certain
It cannot reside in the apparatus or organism that has thrown the projectile, for
this apparatus can be destroyed immediately after the launching without
interupting the progress of the projectile. Nor can the motive agency be the air
which is set ...
discussed the scholastic thesis of the motion of projectiles. Aristotle, he says,
mentions two opinions on this matter. The first invokes tlW'l't7t£Q!,'O'T0t0't§. As a
projectile moves rapidly away from its position, Nature, who does not allow the ...
In connection with the motion of projectiles, he taught the doctrine of impetus, and
presented it in the following way. “ First Conclusion. — It cannot be denied that a
man or a mechanism sets the air in motion when throwing a projectile, just as ...