Hydrostatics and pneumatics / [Dionysius Lardner].

  • Dionysius Lardner
Date:
1831
Catalogue details

Licence: Public Domain Mark

Credit: Hydrostatics and pneumatics / [Dionysius Lardner]. Source: Wellcome Collection.

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    the instrument is made. Even in small syringes accu- rately constructed a degree of imperfection exists, which has been already noticed in the explanation of the ex- hausting syringe ; but such defects are greatly increased in a larger syringe, such as that used in common water pumps, where a common and less expensive mode of construction must be used. From these causes, a column of water, which can be raised in the tube S O, will be less than even 30 feet in height. It is obvious, however, that within this' limit the length of the tube S O must be determined by |he degree of excellence attained in the construction of the syringe C B. When the rarefaction has been carried to a sufficient