1ceſs of the heat, grew weaker then before.
But though we reject not that gheſs, yet
it will not in the preſent caſe ſerve the
turn, becauſe that much ſmaller Glaſs
bubbles exactly cloſ'd, will, by the in
cluded Air (though agitated but by the
heat of a very moderate Fire) be made
to fly in pieces. Whether we may be
aſſiſted to ſalve this Problem, by conſi
dering that the heat does from within ve
hemently agitate the Corpuſcles of the
Air, and adde its aſſiſtance to the Spring
they had before, I ſhall not now examine:
ſince I here but propoſe a Problem, and
that chiefly that by this memorable Story
of Cabæus, notice may be taken of the
prodigious power of Rarefaction, which
hereby appears capable of performing
ſtranger things then any of our Experi
ments have hitherto aſcrib'd to it.
But though we reject not that gheſs, yet
it will not in the preſent caſe ſerve the
turn, becauſe that much ſmaller Glaſs
bubbles exactly cloſ'd, will, by the in
cluded Air (though agitated but by the
heat of a very moderate Fire) be made
to fly in pieces. Whether we may be
aſſiſted to ſalve this Problem, by conſi
dering that the heat does from within ve
hemently agitate the Corpuſcles of the
Air, and adde its aſſiſtance to the Spring
they had before, I ſhall not now examine:
ſince I here but propoſe a Problem, and
that chiefly that by this memorable Story
of Cabæus, notice may be taken of the
prodigious power of Rarefaction, which
hereby appears capable of performing
ſtranger things then any of our Experi
ments have hitherto aſcrib'd to it.
We ſhould hence, My Lord, imme
diatly proceed to the next Experiment,
but that we think it fit, on this occaſion,
to acquaint You with what ſome former
tryals (though not made in our Engine)
have taught us, concerning what we
would have diſcover'd by the newly
mention'd Bubble that broke. And this
the rather, becauſe (a great part of this
diatly proceed to the next Experiment,
but that we think it fit, on this occaſion,
to acquaint You with what ſome former
tryals (though not made in our Engine)
have taught us, concerning what we
would have diſcover'd by the newly
mention'd Bubble that broke. And this
the rather, becauſe (a great part of this