Machinery and Processes of the Industrial Arts: And Apparatus of the Exact SciencesU.S. Government Printing Office, 1869 - 669 páginas |
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Página 5
... hand ; there existed a natural and entirely effectual obstacle in the way of making this valua- ble material the basis of a great manufacture . Whatever might be the demand , there was a physical limit to the supply . There can , of ...
... hand ; there existed a natural and entirely effectual obstacle in the way of making this valua- ble material the basis of a great manufacture . Whatever might be the demand , there was a physical limit to the supply . There can , of ...
Página 11
... hand is capable ; and this could be secured only through the trained skill of the most accomplished artisans . Moreover , in proportion as the dimensions of the work to be executed were larger , or the weight of the mass to be operated ...
... hand is capable ; and this could be secured only through the trained skill of the most accomplished artisans . Moreover , in proportion as the dimensions of the work to be executed were larger , or the weight of the mass to be operated ...
Página 18
... hand in hand , and lend each other mutual aid . Discovery is constantly the basis of invention . The very first thought which presents itself on the acquisition to our pre - existing stock of knowledge of any new truth in chemical or ...
... hand in hand , and lend each other mutual aid . Discovery is constantly the basis of invention . The very first thought which presents itself on the acquisition to our pre - existing stock of knowledge of any new truth in chemical or ...
Página 19
... hand to hand ; victory is no longer the signal for indiscriminate massacre , and the horrible war - cry va victis has ceased to be the shout of the conquerors . The improvement may in some degree be due to the transforming power of ...
... hand to hand ; victory is no longer the signal for indiscriminate massacre , and the horrible war - cry va victis has ceased to be the shout of the conquerors . The improvement may in some degree be due to the transforming power of ...
Página 21
... hand , was a subject of constant interest to crowds of admiring spectators . Most machine tools of which the purpose is special , and many of the inventions auxiliary to rural industry , may be referred to this subdivision . To the ...
... hand , was a subject of constant interest to crowds of admiring spectators . Most machine tools of which the purpose is special , and many of the inventions auxiliary to rural industry , may be referred to this subdivision . To the ...
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Términos y frases comunes
advantage amount angle apparatus applied armature atmosphere axis Bessemer process boiler calories carried cent centimetres circumference compression construction contrivance crank cubic metres cylinder diameter direction discharge disk distance effect electric employed engine equal exhibited experiments Exposition extremity feet force furnace furnished glass half heat horizontal horse-power hundred hydraulic hydraulic head illustrated inches increased instrument introduced invention inventor iron kilograms kilometres latent heat length lever light light-houses liquid machine manufacture means mechanical ment Messrs metal metres millimetres mode motion movable types movement necessary object observed operation ordinary Paris passes piston plate position pounds practical present pressure prism produced pulley pump purpose refrigerator reservoir revolution roller rotary engine rotation screw sextant shaft side Siemens space spherometer steam steam-engine steel surface telescope temperature tion tonometer tube turbine turn valve vapor velocity vertical vessel weight wheel Wicklow Head
Pasajes populares
Página 31 - B with the sound velocity where y is the ratio of the specific heat at constant pressure to the specific heat at constant volume, and p is the gas pressure.