Boyle, Robert
,
New experiments physico-mechanicall, touching the spring of the air and its effects
,
1660
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the force of his hand would then no lon
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ger bend thoſe numerous ſpringy Body's
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that compoſe the Fleece, yet they would
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continue as ſtrongly bent as before, be
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cauſe the Box they are incloſ'd in would
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as much reſiſt their re-expanding of
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themſelves, as did the hand that put them
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in. </
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>For thus we may conceive, that the
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Air being ſhut up, when its parts are bent
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by the whole weight of the incumbent
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Atmoſphere, though that weight can no
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longer lean upon it, by reaſon it is kept
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off by the Glaſs, yet the Corpuſcles of
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the Air within that Glaſs continue as
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forcibly bent as they were before their in
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cluſion, becauſe the ſides of the Glaſs
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hinder them from diſplaying or ſtretch
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ing out themſelves. </
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<
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>And if it be ob
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jected that this is unlikely, becauſe ev'n
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Glaſs bubles, ſuch as are wont to be
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blown at the flame of a Lamp, exceeding
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thin and Hermetically ſeal'd will not
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break; whereas it cannot be imagin'd
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that ſo thin a Priſon of Glaſs could re
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ſiſt the Elaſtical force of all the included
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Air, if that Air were ſo compreſſ'd as we
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ſuppoſe. </
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<
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>It may be eaſily reply'd, That
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the preſſure of the inward Air againſt the
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Glaſs, is countervail'd by the equal preſ-</
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