Approaches the representation of quantum mechanics through Hilbert space postulates. Demonstrates that if the representation is to be accurate, an evolution operator of the form of a Hamiltonian must be used. (CP)

Provides tables and graphs that give a complete and simple picture of the relationships of image distance, object distance, and magnification in all formations of images by simple lenses and mirrors. (CP)

Describes experiments which could be performed on an 1860 rotating table apparatus. (CP)

Discussed are strobe photography, making a storage unit, improving a lecture-table meter, and making an electrical discharge tube. (RH)

Reviews some facts about the status of physics in black education and the need for more physics graduates from black colleges. (MLH)

Gives a brief descriptive review of the life of Albert Einstein, his scientific papers and his valuable contributions to physics. (BA)

Looks at opportunities and needs within the teaching of physics at the secondary level to develop ideas of chance, and to set these within a discussion of some of the problems of what the subject should be like at this level. (Author/GA)

Shows that, as a consequence of two feasible assumptions and when due attention is given to the definition of charge and the fields E and B, the lowest-order equations that these two fields must satisfy are Maxwell's equations. (Author/GA)

The Aharonov-Bohn effect is obtained in first-order perturbation theory. It is shown that the effect occurs only when the initial state is a superposition of eigenstates of Lz corresponding to eigenvalues having opposite sign. (Author/GA)

Tries to clarify and explain some inaccuracies that appeared in a recent article dealing with a current induced in an external circuit due to charges moving within a device, an ionization chamber of planar geometry, in the circuit. (GA)

Presented is an analysis of Pringle's Paradox as an effective vehicle for developing insight into special relativity. (HM)

Describes some of the scientific experiments of Joseph Henry, his role as a scientist and an educator, his contributions to physics teaching both at the precollege and college levels. (GA)

Discusses the possible advantages of decomposing water by means of thermochemical cycles. Explains that, if energy consumption can be minimized, this method is capable of producing hydrogen more efficiently than electrolysis. (GA)