Twentieth century inventions, a forecastLongmans, Green, and Company, 1901 - 286 páginas |
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Página 25
... surface - waves , but reckoning only that part of the ocean energy which might conceivably be made available for service it is safe to calculate that the waves offer between two and three thousand times as much opportunity for the ...
... surface - waves , but reckoning only that part of the ocean energy which might conceivably be made available for service it is safe to calculate that the waves offer between two and three thousand times as much opportunity for the ...
Página 39
... surface buildings that may be seen at any well - equipped mine . The difference in principle , of course , is that while on a mine the engine - house is supplying power to the other side of the derrick , the relations are reversed in ...
... surface buildings that may be seen at any well - equipped mine . The difference in principle , of course , is that while on a mine the engine - house is supplying power to the other side of the derrick , the relations are reversed in ...
Página 45
... surface , and in order to take advantage of the rise and fall on each wave it would be essential to pro- vide at the derrick on the shore end of the wave - power plant very long toothed bands or equivalent devices on a similarly ...
... surface , and in order to take advantage of the rise and fall on each wave it would be essential to pro- vide at the derrick on the shore end of the wave - power plant very long toothed bands or equivalent devices on a similarly ...
Página 47
... surface , and con- nected with the shore so that , when operated by the rising and falling of floats upon the waves , it would drive a supply of water into an elevated reservoir on shore , from which , on escaping down the cliff , the ...
... surface , and con- nected with the shore so that , when operated by the rising and falling of floats upon the waves , it would drive a supply of water into an elevated reservoir on shore , from which , on escaping down the cliff , the ...
Página 49
... surface of the ocean - wild as it may at times appear— is not moved by such extremes of agitation as the atmosphere . In a calm it is never so inertly still , and in a storm it is never so far beyond the normal condition in its ...
... surface of the ocean - wild as it may at times appear— is not moved by such extremes of agitation as the atmosphere . In a calm it is never so inertly still , and in a storm it is never so far beyond the normal condition in its ...
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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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