Twentieth century inventions, a forecastLongmans, Green, and Company, 1901 - 286 páginas |
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Página 30
... suitable class of machinery . It is rather surprising to find how relatively small is the advantage possessed by the vane- windmill over the fixed type in the matter of continuity of working . During about two years the Author conducted ...
... suitable class of machinery . It is rather surprising to find how relatively small is the advantage possessed by the vane- windmill over the fixed type in the matter of continuity of working . During about two years the Author conducted ...
Página 31
... suitable gearing , with the electric current generator situated at the angle . This will be found cheaper than to go to the expense of constructing the mill on a swivel so that it may follow the direction of the wind . At the same time ...
... suitable gearing , with the electric current generator situated at the angle . This will be found cheaper than to go to the expense of constructing the mill on a swivel so that it may follow the direction of the wind . At the same time ...
Página 63
... suitable glowing hot materials will , no doubt , for a long time command the market after the date at which coal - gas for the generation of power has been partially superseded . But it seems exceedingly probable that a compromise will ...
... suitable glowing hot materials will , no doubt , for a long time command the market after the date at which coal - gas for the generation of power has been partially superseded . But it seems exceedingly probable that a compromise will ...
Página 68
... suitable medium for the driving of machinery , a fairly economical transmission can be ensured along a distance of 100 miles . It therefore seems plain that the natural forces derived from such sources as waterfalls can safely be ...
... suitable medium for the driving of machinery , a fairly economical transmission can be ensured along a distance of 100 miles . It therefore seems plain that the natural forces derived from such sources as waterfalls can safely be ...
Página 69
... suitable stations- such as the neighbourhoods of waterfalls - and its transmission for distances of hundreds or even thousands of miles have been spoken of in relation to the industrial prospects of the twentieth century . Comparing any ...
... suitable stations- such as the neighbourhoods of waterfalls - and its transmission for distances of hundreds or even thousands of miles have been spoken of in relation to the industrial prospects of the twentieth century . Comparing any ...
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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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