Publisher's Synopsis
Excerpt from An Essay on the Air-Pump and Atmospheric Railway: Containing Formul� and Rules, for Calculating the Various Quantities Contained in Mr. Robert Stephenson's Report on Atmospheric Propulsion, for the Directors of the Chester and Holyhead Railway Company
This little work, in as far as the author's know ledge extends, is the first of the kind that has ever been composed on the subject. The principles of the air-pump have frequently been investigated, and are consequently well known to mathematical experimentalists; but the application to the pro pulsion Of trains on a railway is a recent achieve ment, involving theories and calculations which had not previously been sufficiently considered, and are therefore but little understood by those who have the most occasion to employ them.
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