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Application des imaginaires au Calcul vectoriel. By J.-B. Pomey. Pp. vi, 70, 20 fr. 1933. (Gauthier-Villars)
On this second slide also is provided the log.-log. scale, a B scale which is marked both L and KTV, a scale marked Dynamo nlot'or and a scale marked Volt Loss. The Dynamo scale and the Motor scale are used in conjunction with the scales A and B, renamed for convenience HP and K IY respectively, for determining efficiencies of dynamos and motors, while scale L and the Volt-Loss scale are for use with A, which gives the area of cross-section of the lead in square millimetres. Very detaileddoi:10.1017/3606550 fatcat:zwdftflo6zdondmjw64jqfks7a