By Pamela Huby
Philoponus has been pointed out because the founder in dynamics of the speculation of impetus, an internal strength inspired from with no, which, in its later recurrence, has been hailed as a systematic revolution. His remark is translated right here with out the formerly translated excursus, the Corollary on Void, also on hand during this sequence. Philoponus rejects Aristotle's assault at the very concept of void and of the potential of movement in it, even if he thinks that void by no means happens in truth. Philoponus' argument used to be later to be praised through Galileo.
This quantity comprises the 1st English translation of Philoponus' remark, in addition to an in depth creation, vast explanatory notes and a bibliography.
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Additional resources for Philoponus : on Aristotle physics 4.6-9
For it was possible by not actually touching these, but as it were standing the arrow on a piece of wood or on some fine line, and likewise the stone, with ten thousand machines to move a great amount of air, and it is clear that by how much the greater amount, and with the greater force, the air is moved, by so much the more it ought to push and force a thing out. But as it is neither would you stand the arrow or the stone on a line or a mark actually without width, and move all the air behind with all power, nor would the arrow be moved the distance of a cubit.
Either therefore it will not move at all (for the void is like itself,79 so that where anything is put in it, it has there its goal and object of desire), or if it does move, it will move from there in all directions; for why more up or down or in the other directions? For the object of desire, as I said, is everywhere. So that it will be torn apart. And there is the same story about the parts, and so on to infinity. The same things, he says, that we state about the void, we have to say also about place against those who think that place is extension.
Aristotle not only refutes with reason the argument in the case of the genuine increase, as he does next, but also with the change from a smaller to a larger volume which happens in coming to be and passing away. For those people did not enquire into the kind of increase, and wonder about how this comes about (for nowadays there is no argument about this), but in wanting to show that void exists they made use of the question about increase, that if a body becomes larger from smaller, and it is necessary that the progress of the [smaller] bodies to the larger comes about with some body entering and being assimilated, it is necessary that void exists.
Philoponus : on Aristotle physics 4.6-9 by Pamela Huby