Memoirs of the Most Eminent American Mechanics: Also, Lives of Distinguished European Mechanics; Together with a Collection of Anecdotes, Descriptions, &c. &c., Relating to the Mechanic ArtsHarper & brothers, 1847 - 482 páginas |
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Página 27
... force of steam along the roads . I pursued that idea about one week , and gave it over as imprac- ticable , or , in other words , turned my thoughts to vessels . From that time I have pursued the idea to this day with unremitted assi ...
... force of steam along the roads . I pursued that idea about one week , and gave it over as imprac- ticable , or , in other words , turned my thoughts to vessels . From that time I have pursued the idea to this day with unremitted assi ...
Página 30
... force of eleven or twelve cwt . after the frictions are deducted ; this force is to be directed against a wheel eighteen inches in diameter . The piston is to move about three feet , and each vibration of it gives the axis about forty ...
... force of eleven or twelve cwt . after the frictions are deducted ; this force is to be directed against a wheel eighteen inches in diameter . The piston is to move about three feet , and each vibration of it gives the axis about forty ...
Página 60
... forces operating between the two bodies , the one , be it remembered , having an excess of electricity , and the other an excess of matter ? There are , in fact , five attractive forces opposed by only four repulsive ; the former being ...
... forces operating between the two bodies , the one , be it remembered , having an excess of electricity , and the other an excess of matter ? There are , in fact , five attractive forces opposed by only four repulsive ; the former being ...
Página 62
... forces operating between the two bodies in each case . But Franklin did not rest contented with ascertaining the prin- ciple of the Leyden phial . He made also a very happy applica- tion of this principle , which afforded a still more ...
... forces operating between the two bodies in each case . But Franklin did not rest contented with ascertaining the prin- ciple of the Leyden phial . He made also a very happy applica- tion of this principle , which afforded a still more ...
Página 64
... force towards points and other prominences , and thus favors its escape through such outlets ; while , on the other hand , the more concentrated attraction which the matter of a pointed body , as compared with that of a blunt one ...
... force towards points and other prominences , and thus favors its escape through such outlets ; while , on the other hand , the more concentrated attraction which the matter of a pointed body , as compared with that of a blunt one ...
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Términos y frases comunes
afterwards American appeared applied Archimedes Arkwright attempt attention Automaton boat canal cards carriage carried clock commenced constructed contrivance cotton cotton gin cylinder difficulties distance early Eddystone lighthouse effect electricity employed employment enabled engaged England erected Evans executed exertions exhibited expense experiments father feet fire Franklin French friends Fulton genius glass ground hand honor hour hundred improvements inches ingenious invention inventor Jaquet Droz JOHN SMEATON labor machine machinery manner manufacture means mechanical ment miles mill mind motion move navigation never obelisk object observed obtained Oliver Evans operation passed patent perfect performed person pieces piston possessed present produced propelling pursuit Richard Arkwright river Robert Fulton SAMUEL CROMPTON says ship soon spinning steam engine steamboats stocking frame stone success Thames Tunnel thing thousand tion torpedoes turned vessel Watt weft wheel Whitney whole workmen