. The philosophical works of the Honourable Robert Boyle esq.: abridged, methodized, and disposed under the general heads of physics, statics, pneumatics, natural history, chymistry, and medicine. internal receiver,that which fhould fucceed in its room, cannot get faft enough out of theexternal receiver, thro fo fmall a pipe ; whilft the air remaining in the fame,will yet retain a fpring ftrong enough to break the glafs. Thus, fome-times, when at the flame of a lamp, glafs-hubbles are blown with (lenderflems I if they be fuddenly removd out of the flame, they either break, ifcoold too faft; or
. The philosophical works of the Honourable Robert Boyle esq.: abridged, methodized, and disposed under the general heads of physics, statics, pneumatics, natural history, chymistry, and medicine. internal receiver,that which fhould fucceed in its room, cannot get faft enough out of theexternal receiver, thro fo fmall a pipe ; whilft the air remaining in the fame,will yet retain a fpring ftrong enough to break the glafs. Thus, fome-times, when at the flame of a lamp, glafs-hubbles are blown with (lenderflems I if they be fuddenly removd out of the flame, they either break, ifcoold too faft; or are comprefsd inwards, if they long retain the foftnefsgiven them by fufion. For the air in the bubble, being exceedingly rari-fied, and expanded, whilft the glafs is kept in the flame, and coming tocool haftily, when removd from thence, lofes, upon refrigeration, thefpring which the heat had given it; and fo, if the external air cannot prefsin faft enough, thro the too flender pipe, afufficient quantity of air will not;get in to refift the preffure of the atmofphere; and therefore, if thispreflure find the bubble yet foft, it will prefs it a little inwards, and cither Vol,.!. Platens. -. ]ajjj>^ Phyfico-mechanical Experiments. c^^ either flatten ic, or make a dent, though the orifice of the pipe be left^^ \yyKj j*<i»n
Size: 1318px × 1895px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, booksubjectchemistry, booksubjectmedicine, booksubjectphysics
