Boyle, Robert
,
New experiments physico-mechanicall, touching the spring of the air and its effects
,
1660
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>By theſe two differing ways, my Lord,
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may the Spring of the Air be explicated.
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<
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>But though the former of them be that,
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which by reaſon of its ſeeming ſomewhat
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more eaſie, I ſhall for the moſt part make
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uſe of in the following Diſcourſe: yet
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am I not willing to declare peremptorily
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for either of them, againſt the other. </
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<
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>And
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indeed, though I have in another Treatiſe
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endeavoured to make it probable, that the
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returning of Elaſtical Bodies (if I may ſo
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call them) forcibly bent, to their former
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poſition, may be Mechanically explica
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ted: Yet I muſt confeſs, that to deter
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mine whether the motion of Reſtitution
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in Bodies, proceed from this, That the
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parts of a Body of a peculiar Structure
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are put into motion by the bending of the
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ſpring, or from the endeavor of ſome ſub
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tle ambient Body, whoſe paſſage may be
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oppoſ'd or obſtructed, or elſe it's preſſure
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unequally reſiſted by reaſon of the new
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ſhape or magnitude, which the bending of
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a Spring may give the Pores of it: To
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determine this, I ſay, ſeems to me a mat
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ter of more difficulty, then at firſt ſight
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one would eaſily imagine it. </
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<
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>Wherefore
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I ſhall decline medling with a ſubject,
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which is much more hard to be explica-</
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