Reviews simple uses of computers in helping students understand basic processes in theoretical and microscopic chemistry. Presents example of a computer program which evaluates the radical part of any hydrogenlike wavefunction. (PR)

After summarizing the ecology of polluted streams as well as the technology and biology of sewage treatment methods, and considering the economic and social aspects of introducing advanced sewage treatment, comments on the role of biology teachers in providing public information are made. (AL)

A discussion of the implications of relativity on the twisting of rods viewed as a one dimensional clock" continuum problem. (TS)

This consists of several topical selections: World Affairs. General; Arms Control and Disarmament; International Organizations; Regional Problems and how they relate to World Stability; Air, Trade and Development; and Ethics and War. Each section covers organizational activity and resources. (JB)

This resource letter is designed to guide college physicists to literature on the history of the neutrino. The literature surveyed covers five periods: (1) the Pauli conjecture, (2) mesous and the universal Fermi interaction, (3) parity violation and two components, (4) the two neutrino experiment, and (5) neutrino astronomy. The bibliography…

Several motions of infinity are examined with reference to children at various ages. (CT)