A History of Technology: The industrial revolution, c. 1750 to c. 1850Clarendon Press, 1958 |
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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 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 ...
Page 616
... measured on shore ( figure 335 ) . In his survey of the Orkney Islands , 1747–9 , Murdoch Mackenzie ( fl 1747–97 ) measured two bases on land with an iron chain , observed the primary triangles by theodolite , and de- fined prominent ...
... measured on shore ( figure 335 ) . In his survey of the Orkney Islands , 1747–9 , Murdoch Mackenzie ( fl 1747–97 ) measured two bases on land with an iron chain , observed the primary triangles by theodolite , and de- fined prominent ...
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 |
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agricultural beam became 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 farming figure fish France French furnace glass heat husbandry Ibid important improved inches increased industrial revolution 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 Photograph by courtesy pipe piston plate practice produced pump river road rollers rotation Rotherham plough salt Science Museum 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