Discusses the use of two television sets with UHF coverage and a window screen or aluminum foil reflector to conduct a take-home experiment in physics. (CC)

Summarizes the Darwin theory of x-ray diffraction in thin crystals or crystals with a mosaic texture and its modified application to crystals with three-dimensional electrostatic dipoles. Indicates that the dynamical theory is brought into its present relevance by the improvement of single crystal growth techniques. (CC)

Examines the role of science in the curricula of British schools at the primary, middle and secondary levels and draws attention to certain problem areas. (JR)

Discusses the philosophy and operation of a self-instructional laboratory at MIT which utilizes visual materials reinforced by audio tapes and is designed to give the student a taste of how to collect, display, and interpret data. Indicates that the approach results in the flexibility needed to serve self-paced courses. (CC)

Discusses the design and operation of a high Q acoustical resonant chamber which can be used to demonstrate wave phenomena such as three-dimensional normal modes, Q values, densities of states, changes in the speed of sound, Fourier decomposition, damped harmonic oscillations, sound-absorbing properties, and perturbation and scattering problems.…

Describes experiments that can be carried out by freshmen in general science courses. All experiments are prepared with inexpensive equipment and materials. Quantitative data are analyzed intuitively using graphical representations. (JP)

Describes a circuit which can produce patterns consisting of epicycle curves. The appearance and mathematical nature of some of the patterns is explained. Details are given for the conversion of an oscilloscope to display the patterns demonstrating the practicality of such experiments in most introductory physics laboratories. (JP)

Discusses the use of an ideal gas model to explain osmotic equilibrium and nonequilibrium flows through an ideal semipermeable membrane. Included are a justification of the relationship between an ideal gas and a dilute solution, a review of the irreversible thermodynamic flow, and some sample applications to physiology. (CC)

Discusses the influence of tradition in science on selection of scientific problems and methods and on the use of concepts as tools for research work. Indicates that future research studies will be directed toward the change of fundamental concepts in such fields as astrophysics, molecular biology, and environmental science. (CC)

Discusses theories underlying man's conceptions of the universe, including Omnes' repulsive separation mechanism, the turbulence theory of galaxy formation, and the author's idea about gamma ray spectra in cosmological matter-antimatter annihilation. Indicates that the Apollo data provide encouraging evidence by fitting well with his theoretical…

Suggests basic mathematical requirements on the General Certificate of Education A level in an effort to improve student inability of using mathematical skills in learning sixth form physics and subsequent advanced courses. Indicates that conformity with new styles of mathematics teaching is preferable in curriculum formulation. (CC)

Discusses the visual and photographic methods and the design features of a camera at Aberystwyth with a brief justification for satellite tracking. Indicates that satellite measurements have been used to determine the shape of the earth and diurnal variations in atmospherical densities. (CC)