Galilei, Galileo
,
The systems of the world
,
1661
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<
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>SIMP. </
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<
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>Becauſe that the air it ſelf is not moved</
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<
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>SALV. </
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<
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>It is requiſite then, that the projicient do confer
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tion on the Air, with which it afterward moveth the project. </
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<
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>But
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if ſuch a motion cannot be impreſſed [
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i. </
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<
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>e. </
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<
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>imparted
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] it being im
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poſſible to make an accident paſſe out of one ſubject into another,
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how can it paſſe from the arm into the Air? </
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<
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>Will you ſay that the
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Air is not a ſubject different from the arm?</
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<
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>SIMP. </
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<
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>To this it is anſwered that the Air, in regard it is
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ther heavy nor light in its own Region, is diſpoſed with facility to
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receive every impulſe, and alſo to retain the ſame.</
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<
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>SALV. </
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<
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>But if thoſe
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penduli
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even now named, did prove
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unto us, that the moveable, the leſſe it had of gravity, the leſſe
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apt it was to conſerve its motion, how can it be that the Air
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which in the Air hath no gravity at all, doth of it ſelf alone
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tain the motion acquired? </
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>I believe, and know that you by this
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time are of the ſame opinion, that the arm doth not ſooner
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turn to reſt, than doth the circumambient Air. </
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<
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>Let's go into the
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Chamber, and with a towel let us agitate the Air as much as we
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can, and then holding the cloth ſtill, let a little candle be
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brought, that was lighted in the next room, or in the ſame place
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let a leaf of beaten Gold be left at liberty to flie any wav, and you
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ſhall by the calm vagation of them be aſſured that the Air is
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diately reduced to tranquilty. </
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<
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>I could alledg many other
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ments to the ſame purpoſe, but if one of theſe ſhould not
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fice, I ſhould think your folly altogether incurable.</
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<
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>SAGR. </
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<
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>When an arrow is ſhot againſt the Wind, how
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ble a thing is it, that that ſame ſmall filament of air, impelled by
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the bow-ſtring, ſhould in deſpite of fate go along with the arrow?
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</
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<
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>But I would willingly know another particular of
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Ariſtotle,
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to
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which I intreat
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Simplicius
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would vouchſafe me an anſwer. </
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<
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<
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poſing that with the ſame Bow there were ſhot two arrows, one
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juſt after the uſual manner, and the other ſide-wayes, placing it
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long-wayes upon the Bow-ſtring, and then letting it flie, I would
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know which of them would go fartheſt. </
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>
<
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>Favour me, I pray you
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with an anſwer, though the queſtion may ſeem to you rather
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ridiculous than otherwiſe; and excuſe me, for that I, who am, as
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you ſee, rather blockiſh, than not, can reach no higher with my
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ſpeculative faculty.</
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<
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>SIMPL. </
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>
<
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>I have never ſeen an arrow ſhot in that manner, yet
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nevertheleſſe I believe, that it would not flie ſide-long, the
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twentieth part of the ſpace that it goeth end-wayes.</
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<
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>SAGR. </
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<
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>And for that I am of the ſame opinion, hence it is, that
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I have a doubt riſen in me, whether
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Aristotle
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doth not contradict
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experience. </
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<
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>For as to experience, if I lay two arrows upon this
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Table, in a time when a ſtrong Wind bloweth, one towards </
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</
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