Lawrence Hargrave Quotes
It becomes a giant's task to compute the result when the effect of cross seas, wind at all angles and ever varying force, arched surfaces, head resistance, ratio of weight to area, and the intelligence of the guiding power crop up.
Citations
Hargrave, Lawrence. "Sailing Birds are Dependent on Wave-Power." Journal and Proceedings of the Royal Society of New South Wales, vol. 33, Royal Society of New South Wales, 1899, p. 131.
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Lawrence Hargrave, MRAeS, was an Australian engineer, explorer, astronomer, inventor and aeronautical pioneer.