But pray you allow us to return to our birds; touching which you have stated, that the Air being moved with nice velocity, may restore unto them that a part of the diurnal motion which amongst the windings of their flight they may need lost; to which I reply, that the agitated Air seemeth unable to confer on a stable and grave body, so great a velocity as its personal: And since that of the Air is as great as that of the Earth, I can not suppose that the Air is ready to make good the losse of the birds retardation in flight. And thus, in the opposite argument, not contemplating that whil’st the stone is upon the Tower, it doth, as to shifting or not transferring, the identical that the Terrestrial Globe doth, as a result of you have concluded with your self, that the Earth stands nonetheless, you at all times discourse touching the fall of the stone, as if it had been to depart from relaxation: whereas it behooveth to say, that if the Earth standeth still, the stone departeth from rest, and descendeth perpendicularly; but when the Earth do move, the stone likewise moveth with like velocity, nor doth it depart from relaxation, but from a motion equal to that of the Earth, wherewith it intermixeth the supervenient movement of descent, and of those two composeth a 3rd which is transversal or aspect-ways.
Besides these argumentations depend on these issues that begin up in the fancy not of one person, but of three, that we are: And moreover we discourse for our pleasure, nor are we obliged to that strictnesse of one who ex professo treateth methodically of an argument, with an intent to publish the same. And now from this discourse allow us to come to understand the rationale of a Venatorian Problem, of those Fowlers who with their guns shoot a fowl flying; and because I did imagine, that in regard the bird flieth a terrific pace, subsequently they need to goal their shot far from the chook, anticipating its flight for a certain area, and kind of in response to its velocity and the distance of the hen, that so the bullet hasting on to the mark aimed toward, it’d come to arrive at the self identical time in the identical point with its movement, and the chicken with its flight, and by meaning one to encounter the other: and asking one among them, if their practise was not so to do; He told me, no; but that the slight was very easie and certain, and that they took intention just in the identical manner as if they had shot at a fowl that did sit nonetheless; that’s, they made the flying fowl their mark, and by transferring their fowling-piece they adopted her, conserving their intention still full upon her, until such time as they let fly, and on this manner shot her as they did others sitting nonetheless.
Salv.Very great, that’s a couple of pace; in regard that the varying so much, yea and extra, is granted to occur ordinarily even in the Earths mobility. The ball subsequently having two motions, one upwards, and the other in gyration, of each which the transverse line BD is compounded, the impulse upward is wholly of fire, the circular cometh wholly from the Earth, and is equal to the Earths motion: and being equal to it, the ball maintaineth it self all the best way instantly over the mouth of the Piece, and finally falleth again into the same: and because it at all times observeth the erection of the Piece, it appeareth additionally regularly over the pinnacle of him that is close to the Piece, and therefore it appeareth to mount precisely perpendicular towards our Zenith, or vertical point. And all this hath been spoken and granted on good grounds to Simplicius, and only with an intent to advertise him how a lot it importeth to be cautious in granting many experiments for true to those who by no means had tried them, however solely eagerly alledged them simply as they must be for the serving their function: This is spoken, I say, by means of surplussage and Corollary to Simplicius, for the real fact is,Experiments and arguments towards the Earths motion appear thus far concluding, as they lie hid below equivokes.
