Twentieth century inventions, a forecastLongmans, Green, and Company, 1901 - 286 páginas |
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Página 12
... problems in- volving man's industrial progress is providen- tially indestructible . Twentieth century inventions — as the term is used in this book - are , therefore , those which are destined to fulfil their missions during the ensuing ...
... problems in- volving man's industrial progress is providen- tially indestructible . Twentieth century inventions — as the term is used in this book - are , therefore , those which are destined to fulfil their missions during the ensuing ...
Página 13
... problem before him depends - in short , he may take every reasonable precaution against the chances of failure , yet , in spite of all , he must necessarily incur risks . And so it is with regard to the task of forecasting the trend of ...
... problem before him depends - in short , he may take every reasonable precaution against the chances of failure , yet , in spite of all , he must necessarily incur risks . And so it is with regard to the task of forecasting the trend of ...
Página 16
... problems , affecting the progress of trade and manufactures in the present day , involve exactly the same kind of fallacy . Men are selected to pronounce judgment upon the proposals of their rivals in trade , and narrow - minded ...
... problems , affecting the progress of trade and manufactures in the present day , involve exactly the same kind of fallacy . Men are selected to pronounce judgment upon the proposals of their rivals in trade , and narrow - minded ...
Página 24
... problem as follows : Which is the more valu- able - an agricultural area of forty acres or an available source of energy equal to one hundred horse - power ? The data for the solution of such a question are obviously not at hand ...
... problem as follows : Which is the more valu- able - an agricultural area of forty acres or an available source of energy equal to one hundred horse - power ? The data for the solution of such a question are obviously not at hand ...
Página 25
... problem of similarly utilising the wave - power , which goes to waste in such inconceivably huge quantities . Where the tidal force elevates and depresses the sea - water on a shore , through a vertical distance of say eight feet ...
... problem of similarly utilising the wave - power , which goes to waste in such inconceivably huge quantities . Where the tidal force elevates and depresses the sea - water on a shore , through a vertical distance of say eight feet ...
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adopted already alternate current apparatus appliances application B.Sc BOTANY buoy cable calcium carbide carrying cheap CHEMISTRY collectivism College Coloured compressed air constructed convenient course Crown 8vo D.Sc Diagrams direction driving dynamo economical effect electric current electric lighting ELEMENTARY energy engine fact force future heat Hospital Illustrations improvement industrial INORGANIC CHEMISTRY invention inventor JOHN TYNDALL kind latter Lecturer LL.D lodes Lond machine machinery MAGNETISM Manual means mechanical ment metal methods miner mining motion motor natural naval nineteenth century numerous operation PHYSIOLOGY piano pipe Plates practically principle Professor progress pumping purposes R. A. PROCTOR rail railway render road Royal 8vo running sail Science screw shaft ship side speed station steam steam-engine steel storage battery STRENGTH OF MATERIALS suitable tank telegraphy TEXT-BOOK tion traction traction engines truck turbine twentieth century utilised ventilation vessel wave-power waves wheel wind windmill wire Woodcuts
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