The Franklin Journal, and American Mechanics' Magazine1869 |
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ammonia amount apparatus arch arranged battery belt boiler braces bridge cable canal carbon carbonic acid cast iron cent centre chromosphere chronograph circuit circular saw coal color column connected construction Cornish engines cylinder deflection diameter distance Dudley Observatory Eclipse equal experiments farads feet focal length force Franklin Institute friction galvanometer gases give given glass groove guns heat horse-power hydrogen lake Lake Nicaragua light LIX.-THIRD SERIES.-No load machines Magnesium means measured metal miles minutes Nicaragua nitric acid nitrogen object observed obtained ordinary oxide oxygen passing pier placed plate pounds pressure Prof projectile pulley pumping quantity rails reciprocating saws river rope scale screw shaft side signals span spectrum speed square inch steam steel strains surface temperature thick timber tion tons truss tube tunnel Valencia valve velocity wall weight weir wheel wire wrought iron zinc