Hydroelectricity and Industrial Development: Quebec 1898-1940, par John-H. Dales. Un vol., 6¼ po. x 9½, relié, 269 pages. — S.-J. Reginald Saunders and Company Limited, Toronto 1, Ontario, 1957. ($7.25)

"It pays": John H. Patterson and industrial recreation at the National Cash Register Company.

During the latter period of the nineteenth century, developing industrial corporations attempted to bring order to their operations. These rapidly expanding companies, such as Pullman Palace Car, H.J. Heinz, Westinghouse, and Sherwin-Williams, saw the need to organize production, sales, and service in the competitive market place. They also showed some initial concern about employees’ disconten...

John H. Knox, 1898-1979: a brief biography.

John von Neumann 1903 - 1957

If influence of a scientist is interpreted broadly enough to include impact on fields beyond science proper then John von Neumann was probably the most influential mathematician ever lived: not only did he contribute to almost all branches of modern mathematics and created new fields but he also changed history after the second World War by his work in computer design and by being a sought-afte...

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An isospin analysis of B → ππ decays yields sin 2α, where α is the usual CKM angle α ≡ arg[−V td V * tb /(V ud V * ub)] without hadronic uncertainty if isospin is a perfect symmetry. Yet isospin symmetry is broken not only by electroweak effects but also by the u and d quark mass difference — the latter drives π 0 − η, η ′ mixing and converts the isospin-perfect triangle relation between the B ...

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