Boyle, Robert
,
New experiments physico-mechanicall, touching the spring of the air and its effects
,
1660
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bubble with a very ſmall Neck (not ex
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ceeding the ſixth part of an Inch in Dia
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meter) which we fill'd half way to the
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top, and then convey'd it into the Recei
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ver; the iſſue was, That though we drew
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out more then ordinary, yet there ap
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pear'd not the leaſt intumeſcence of the
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Water, nor any aſcending bubbles. </
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>But ſuſpecting that either the ſmall
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quantity of the water or the Figure of the
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Veſſel might have an intereſt in this odde
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Phænomenon,
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we took the lately mention'd
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Philoſophical Egge, and another not
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much differing from it; the former we
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fill'd up with diſtill'd Rain-water to the
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old mark, and into the latter we put a
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long Cylinder or Rod of ſolid Glaſs to
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ſtreighten the cavity of the Neck by al
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moſt filling it up; and then pouring ſome
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diſtilled Water into that alſo, till it
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reach'd within ſome Fingers breadth of
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the top, the Eggs were let down into the
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Receiver. </
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<
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>In this Experiment the Air
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was ſo far drawn forth before there ap
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pear'd any bubble in either of the Glaſſes,
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that the diſparity betwixt this and com
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mon water was manifeſt enough. </
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<
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>But at
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length, when the Air was almoſt quite
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pump'd out, the bubbles began to diſ-</
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