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other curves wave in a curious manner


unopened figure, illustrating Ernest Wilson, "The Relative Size, Weight, and Price of Dynamo-Electric Machines." Proceedings of the Institution of Electrical Engineers 26 (1897): 160-178

Mr. H. W. Ravenshaw observes: Some of the curves are very regular indeed, and I cannot help thinking that the shape has something to do with the particular French curves in the possession of the estimating clerk. Other curves wave in a curious manner, and are perhaps taken from the prime costs of machines which are made in sets... (p 169)

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tags: E. Wilson; curves; weight