A defence of the doctrine touching the spring and weight of the air propos'd by Mr. R. Boyle in his new physico-mechanical experiments, against the objections of Franciscus Linus ; wherewith the objector's funicular hypothesis is also examin'd, by the author of those experiments.
About this Item
Title
A defence of the doctrine touching the spring and weight of the air propos'd by Mr. R. Boyle in his new physico-mechanical experiments, against the objections of Franciscus Linus ; wherewith the objector's funicular hypothesis is also examin'd, by the author of those experiments.
Author
Boyle, Robert, 1627-1691.
Publication
London :: Printed by F.G. for Thomas Robinson ...,
1662.
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Subject terms
Line, Francis, 1595-1675.
Air -- Early works to 1800.
Air-pump -- Early works to 1800.
Physics -- Experiments -- Early works to 1800.
Cite this Item
"A defence of the doctrine touching the spring and weight of the air propos'd by Mr. R. Boyle in his new physico-mechanical experiments, against the objections of Franciscus Linus ; wherewith the objector's funicular hypothesis is also examin'd, by the author of those experiments." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A28956.0001.001. University of Michigan Library Digital Collections. Accessed May 3, 2024.
Pages
The 8. Experiment.
This is that wherein we mention our having broke a Glass-Receiver, which was not globular, by the exhaustion of most of the inward Air, whereby its debilitated pressure became unable to resist the unweakned pressure of the outward Air. But this Ex∣plication the Examiner confidently rejects in these words, At pro∣fecto non videtur credibile, mollissimum hunc aërem tam vehementer vitrum (tantae praesertim crassitudin is quantae ibidem dicitur) undi{que} sic comprimere ut illud perfring at: as if it were more credible that the little Air within (which, according to him, is so much thinner then common Air) should be able to act more powerful∣ly upon the Glass then the Air without, which himself confesses to be a heavy body, and which not onely reaches from the sur∣face of the Earth to the top of the highest Mountains, but which (as may not improbably be argued from what we have else∣where delivered) may, for ought we know to the contrary, be heaped upon the Receiver to the height of some hundreds of Miles, nay, to I know not how many thousands, in case the Atmosphere be not a bounded port on of the Air, but reach as high as It.
As for the Explication he substitutes in these words, Verius ita{que} respondetur, ideo sic fractum esse illud vitrum, quia per exhaustio∣nem illam latera ejus vehementius introrsum sint attracta, quam ut ob figuram illam resistendo minus idoneam resistere potuerunt. Cum enim inclusus aër lateribus vitri firmissimè adhaereat, nihil aliud erit aërem illum sic exhaurire, quam satagere latera vitri introrsum fle∣ctere: By what we have already discoursed about the Funiculus, the Reader may easily discern what is to be answered. Nor does our Author here shew us any way by which his imaginary
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strings should take such fast hold of the sides of the Glass, as to be able to draw them together notwithstanding the resistance they find from the close texture of the Body to be broken.