Boyle, Robert
,
New experiments physico-mechanicall, touching the spring of the air and its effects
,
1660
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Experi
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ment
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26.</
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<
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>THat the Air is the medium whereby
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ſounds are convey'd to the Ear, has
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been for many Ages, and is yet the com
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mon Doctrine of the Schools. </
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>But this
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Received Opinion has been of late op
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poſ'd by ſome Philoſophers upon the ac
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count of an Experiment made by the
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Induſtrious
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Kircher,
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and other Learned
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Men, who have (as they aſſure us) ob
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ſerv'd, That if a Bell, with a Steel Clap
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per, be ſo faſten'd to the inſide of a Tube,
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that upon the making the Experiment
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De
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Vacuo
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with that Tube, the Bell remain'd
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ſuſpended in the deſerted ſpace at the up
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per end of the Tube: And if alſo a vi
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gorous Load-ſtone be apply'd on the out
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ſide of the Tube to the Bell, it will at
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tract the Clapper, which upon the Remo
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val of the Load-ſtone falling back, will
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ſtrike againſt the oppoſite ſide of the
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Bell, and thereby produce a very audible
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ſound, whence divers have concluded,
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That 'tis not the Air, but ſome more ſub
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tle Body that is the medium of ſounds.
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>But becauſe we conceiv'd that, to invali
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date ſuch a conſequence from this ingeni
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ous Experiment (though the moſt lucife-</
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