A letter to Dr. Cheyne : containing an account of the motion of water through orifices and pipes; and an answer to Dr. Morgan's remarks on Dr. Robinson's Treatise of the animal oeconomy.

  • Bryan Robinson
Date:
1735
Catalogue details

Licence: Public Domain Mark

Credit: A letter to Dr. Cheyne : containing an account of the motion of water through orifices and pipes; and an answer to Dr. Morgan's remarks on Dr. Robinson's Treatise of the animal oeconomy. Source: Wellcome Collection.

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    t ] Diftance of 4 Feet from the Surface of the Water, and the Pipes lay all parallel to the Horizon. By this Table, the Velocity in- creates from the Hole till the Length of the Pipe becomes equal to about twice its Diameter, that is, equal to about 2 D, and is greater there than at any other Length of the Pipe. The greateft Velocities in thete Pipes in Proportion to the Veloci¬ ties through their relpe&ive Holes, which Holes may be confidered as Pipes of infinitely fmall Lengths, are as the Numbers 1130,1215 1258, in Proportion to 1000: Whence we learn, that the greateft Velocity in a Pipe in Proportion to the Velocity through an Hole of an equal Diameter and at an equal per¬ pendicular Diftance from the Sur¬ face of the Water, is fomething greater in a wider Pipe than in a nar¬ rower one. From
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