Discusses what is meant by a linear program and states and illustrates two of the theorems upon which the methods of linear programing rest. This description is intended as an introduction to linear programing of physics students. (HM)

Discusses how Volta's concept of electromotive force seems to be forgotten. A comparison of the concepts of potential difference and electromotive force is also included. (HM)

Presents evidence to support the author's viewpoint that Einstein's General Relativity Theory is related to concepts of chemo-electricity. (CS)

Describes an experiment to measure the thermal conductivity of some gases in an undergraduate physics laboratory using a hot wire method in the pressure range ten to one torr. (HM)

Discusses rapid, approximate methods for the calculation of errors estimates and other statistical results without using the computer. (SK)

Described is a project which measured the parameters of the moon's orbit and the moon's size with various equipment, photographs, and calculations. The goals for this project included: completion within a 6-8 week period, reliance on existing equipment and data obtained, and provision for hands-on experience to advanced high school students.…

Briefly reviews past endeavors at achieving international communication among scientists. Describes present accomplishments of the International Centre for Theoretical Physics. Makes appeals for scientific and technological development to the development countries, to the international community, and to representations of the OPEC countries. (CS)

Discussed is the physicists' impact on the revolution in the earth sciences particularly involving the overthrow of the fixist notions in geology. Topics discussed include the mobile earth, the route to plate tectonics, radiometric dating, the earth's magnetic field, ocean floor spreading plate boundaries, infiltration of physics into geology and…

Described is the Technician Education Council (TEC) format, and philosophy of physics courses for technicians in industry education. (DS)

Explains how CTR Wilson cloud chamber experiments can be simulated with simple low-cost apparatus. Described are the Wilson cloud chamber, colour rings, measurement of rings, and the apparatus. (DS)

Described are several experiments, for a course in geometrical optics or for a college physics laboratory, which have a bearing on ophthalmic optics. Experiments include the single thin prism, crossed prisms, and the prismatic power of a lens. (Author/DS)

Discussed is the classical partition function for the ideal gas and how it differs from the exact value for bosons or fermions in the classical regime. The differences in the two values are negligible hence the classical treatment leads in the end to correct answers for all observables. (Author/DS)

Discusses errors and misleading statements found in discussing the meaning of the minus sign in treating the topics of the conservation laws of energy, momentum, and angular momentum. (CS)

Starting from the energy and degeneracy of the Landau levels of a free-electron gas in a magnetic field, the nonoscillatory term of the Landau diamagnetism is derived for T=O, using elementary algebra only. (Author/JN)

Describes various procedures applicable to secondary school science classes, including: (1) constructing a centripetal accelerometer; (2) demonstrating weightlessness with a small scale apparatus employing a catapult; (3) teaching hexadecimal counting by using the fingers; (4) demonstrating oscillation and resonance in tuned circuits. (CS)