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Aviation History
1945
1945 - 0480.PDF
^ FLTGHT * MARCH 15TH. 1945 FUNDAMENTALS OF O THE UNITEfi CDMWUIItHTD Since the dawn of time man has endeavoured to utilise power to provide for his needs. In early times power was wrested from the muscles of slaves or from the patient ox. Medieval man harnessed the wind and water to turn his mills and grind his com. To-day the engineer makes use of a third element—fire and, with air and water, generates many thousands of horsepower in one place, whence it is distributed to do useful work at many distant points. These modern miracles have been made possible by the special and alloy steels evolved to suit the complex conditions in the operation of high temperature water tube boilers, in the turbines and electrical generators. Electric pylons of steel stride across the countryside carrying rhe invisible current for conversion into power at the bidding of man- THE UNITED STEEL COMPANIES LIMITED PEECH & TOZER, SHEFFIELD SAMUEL FOX & CO. LTD., SHEFFIELD UNITED STRIP S, BAR MILLS. SHEFFIELD APPLEBY-FRODINGHAM STEEL CO. LTD., SCUNTHORPE WORKINGTON IRON S, STEEL CO., WORKINGTON THE SHEFFIELD COAL CO. LTD. THE ROTHERVALE COLLIERIES, TREETON UNITED COKE & CHEMICALS CO. LTD. THOS. BUTLIN & CO. WEUINGBOROUGH (S) U.S.P. 29
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