A History of Technology: The industrial revolution, c. 1750 to c. 1850Clarendon Press, 1954 |
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Page 157
... measured the output of two marsh - mills , expressed as the fall of the level of the lake they pumped . Similar measurements , comparing a marsh - mill turning a scoop - wheel with one turning an Archimedean screw , were made near ...
... measured the output of two marsh - mills , expressed as the fall of the level of the lake they pumped . Similar measurements , comparing a marsh - mill turning a scoop - wheel with one turning an Archimedean screw , were made near ...
Page 600
... measurements to determine the shape of the Earth . From arcs measured in various parts of the world ( figure 326 ) , seven principal figures for the flattening of the spheroid at the poles , varying from 1 / 293.5 to 1 / 300-8 , were ...
... measurements to determine the shape of the Earth . From arcs measured in various parts of the world ( figure 326 ) , seven principal figures for the flattening of the spheroid at the poles , varying from 1 / 293.5 to 1 / 300-8 , were ...
Page 610
... measured with Colby's apparatus , verified by four check bases . In the great triangles , 66 sides exceeded 80 miles in length , and the preci- sion of the work is gauged by the difference of only 5 in between the length of the ...
... measured with Colby's apparatus , verified by four check bases . In the great triangles , 66 sides exceeded 80 miles in length , and the preci- sion of the work is gauged by the difference of only 5 in between the length of the ...
Contents
GLASS by L M ANGUSBUTTERWORTH Director The Newton Heath Glass | 12 |
TELEGRAPHY by G R M GARRATT Deputy Keeper Department of Electrical | 22 |
FISH PRESERVATION by C L CUTTING Officer in Charge Humber | 44 |
Copyright | |
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agricultural beam became blast-furnace Boulton Boulton and Watt bridge Britain British built canal carbon carried cast iron chemical clay coal Coalbrookdale coke construction copper crops cylinder D. E. Woodall developed diameter driving E. J. HOLMYARD early eighteenth century engine England Europe fallow farming figure fish France French furnace Germany glass heat husbandry Ibid important improved inches increased industrial revolution industry introduced invention J. F. Horrabin John Smeaton later lathe London machine machinery manufacture mechanical metal method mill mineral mines Newcomen Newcomen engine nineteenth century obtained operation oxide Paris patent pipe piston plate practice produced pump river road rollers rotation Rotherham plough salt screw sewers shaft ships silk Smeaton smelting Staffordshire steam steam-engine steel stone sulphuric acid surface tion tuyère vertical ware water-wheels watermills Watt whales wheel wooden wrought iron