Issues

The remarkably powerful algebra of current components may supply the dynamics of hadron physics or may instead herald the emergence of an algebra of fields. If all the problems can be solved we will know if the fundamental building blocks, the quarks, have a physical existence and we will be able to make predictions of their properties.

Development of the Wigner–Seitz method for interpreting metallic structure, study of Brillouin zones and calculations of energy bands in solids led to new understanding of molecular theory and of electronic structure in crystals.

Traditions that have produced great science do not always meet today's needs. Not enough trained physicists move from college to plant. Both altruistic and selfish motives spur teachers and managers to find out what, if anything, is wrong and what should be done about it.

This aid to those interested in the varieties of form and content contains an extensive survey of over 50 books. Prefaces, tables of contents, general levels of mathematical and physical sophistication and the kinds of problems and other study aids are examined and commented upon.

From primitive machines and the discovery of fire came problems of mechanics and heat. The steam engine brought them forcibly together. Out of the study of heat‐to‐work transformations that resulted, came our entropy concept, and extension of the reasoning has brought useful applications in far‐removed subjects like probability, number theory, information theory and language.

The first joint APS‐AAPT annual meeting ever held in Chicago will offer almost 90 invited and 700 contributed papers with APS divisions organizing their own symposia.