1Since in that part of the Atmoſphere we
live in, that which we call the free Air (and
preſume to be ſo uncompreſſ'd) is crouded
into ſo very ſmall a part of that ſpace,
which if it were not hindred it would poſ
ſeſs. We would gladly have tryed alſo
whether the Air at its greateſt expanſion
could be further rarified by heat; but do
what we could, our Receiver leak'd too
faſt to let us give our ſelves any ſatisfacti
on in that particular.
live in, that which we call the free Air (and
preſume to be ſo uncompreſſ'd) is crouded
into ſo very ſmall a part of that ſpace,
which if it were not hindred it would poſ
ſeſs. We would gladly have tryed alſo
whether the Air at its greateſt expanſion
could be further rarified by heat; but do
what we could, our Receiver leak'd too
faſt to let us give our ſelves any ſatisfacti
on in that particular.
TO diſcover likewiſe by the means of
that preſſure of the Air, both the
ſtrength of Glaſs, and how much inte
reſt the Figure of a Body may have in its
greater or leſſer Reſiſtance to the preſſure
of other Bodys, we made theſe further
tryals.
that preſſure of the Air, both the
ſtrength of Glaſs, and how much inte
reſt the Figure of a Body may have in its
greater or leſſer Reſiſtance to the preſſure
of other Bodys, we made theſe further
tryals.
Experi
ment 7.
ment 7.
We cauſ'd to be blown with a Lamp a
round Glaſs bubble, capable of contain
ing, by gueſs, about five Ounces of Wa
ter, with a ſlender neck about the bigneſs
of a Swans Quill, and it was purpoſely
blown very thin, as Viols made with
Lamps are wont to be, that the thinneſs
of the matter might keep the roundneſs
of the Figure from making the Veſſel too
round Glaſs bubble, capable of contain
ing, by gueſs, about five Ounces of Wa
ter, with a ſlender neck about the bigneſs
of a Swans Quill, and it was purpoſely
blown very thin, as Viols made with
Lamps are wont to be, that the thinneſs
of the matter might keep the roundneſs
of the Figure from making the Veſſel too