force 3. It must be so designed that one man can operate it. nism between science and practice. Some even went so far of fluids flowing through tubes. 4. 1t must carry its own fuel and water, in quantities suf- as to say that the two are incompatible. The farmer who A wheel having diagonal blades… … connected with the pipes through which pirical rules of his forefathers, and asks, FLUID PROPELLER OR MOTOR. the fluideis to be moved or through which “Could not that have been done in a bet- water flows if it is to be used as a motor. ter and more perfect way; would not this This improvement is…
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