Twentieth century inventions, a forecastLongmans, Green, and Company, 1901 - 286 páginas |
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Página 8
... advantage of this fact is usually one of the last men from whom to get a trustworthy opinion on patents of a different class . Of the patents taken out during the latter portion of the nineteenth century , many un- doubtedly contain the ...
... advantage of this fact is usually one of the last men from whom to get a trustworthy opinion on patents of a different class . Of the patents taken out during the latter portion of the nineteenth century , many un- doubtedly contain the ...
Página 24
... advantages of reclaiming a given area of soil for purposes of cultivation , and of converting the same land into a tidal basin in order to generate power through the inward and outward flow of the sea - water , were con- trasted by Lord ...
... advantages of reclaiming a given area of soil for purposes of cultivation , and of converting the same land into a tidal basin in order to generate power through the inward and outward flow of the sea - water , were con- trasted by Lord ...
Página 30
... advantage possessed by the vane- windmill over the fixed type in the matter of continuity of working . During about two years the Author conducted a series of experi- ments with the object of determining this point , the fixed windmill ...
... advantage possessed by the vane- windmill over the fixed type in the matter of continuity of working . During about two years the Author conducted a series of experi- ments with the object of determining this point , the fixed windmill ...
Página 34
... advantages are much more evenly balanced than they might at first sight seem to be . The cup - shaped sail may be greatly improved upon for power - generating purposes by adopt- ing a sail having a section not semicircular but ...
... advantages are much more evenly balanced than they might at first sight seem to be . The cup - shaped sail may be greatly improved upon for power - generating purposes by adopt- ing a sail having a section not semicircular but ...
Página 35
... advantage of this type of windmill is that it may be made to act virtually as its own stand , the only necessity in its erection being that it should have a collar fitting round the topmost bearing , which collar is fastened by four ...
... advantage of this type of windmill is that it may be made to act virtually as its own stand , the only necessity in its erection being that it should have a collar fitting round the topmost bearing , which collar is fastened by four ...
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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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