Report on Machinery and Processes of the Industrial Arts and Apparatus of the Exact SciencesVan Nostrand, 1869 - 669 páginas |
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Página 10
... directions as the mass was nipped between the rollers , and wound rapidly in amid quick reports like those of dull ... direction , and again and again does the mass go forward and back- wards , each time passing between a smaller space ...
... directions as the mass was nipped between the rollers , and wound rapidly in amid quick reports like those of dull ... direction , and again and again does the mass go forward and back- wards , each time passing between a smaller space ...
Página 12
... direction of measurement of only one two - hundred- and - fiftieth of one four - thousandth of an inch - that is to say , of one one- millionth part of an inch ; and to this degree of refinement it is Mr. Whitworth's belief that ...
... direction of measurement of only one two - hundred- and - fiftieth of one four - thousandth of an inch - that is to say , of one one- millionth part of an inch ; and to this degree of refinement it is Mr. Whitworth's belief that ...
Página 17
... direction in which it presents itself . An example of this kind is furnished by the discovery of indium , brought to light in the study of the solar spectrum . Such dis- coveries may be called incidental . The early history of chemistry ...
... direction in which it presents itself . An example of this kind is furnished by the discovery of indium , brought to light in the study of the solar spectrum . Such dis- coveries may be called incidental . The early history of chemistry ...
Página 26
... direction , if there is any , unimportant . It is , however , an advantage that air- engines are cheaper of construction than those driven by steam , and that their management is easier , and requires less constant watchfulness . It has ...
... direction , if there is any , unimportant . It is , however , an advantage that air- engines are cheaper of construction than those driven by steam , and that their management is easier , and requires less constant watchfulness . It has ...
Página 29
... direction opposite to that of its former movement ; and as , during this period , the refrigerator removes the heat generated by compression , the temperature remains constantly the same , and the work consumed in overcoming the resist ...
... direction opposite to that of its former movement ; and as , during this period , the refrigerator removes the heat generated by compression , the temperature remains constantly the same , and the work consumed in overcoming the resist ...
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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.