This study investigates the influences and relationships between self-concept elements and students' activities in a normal school environment and focuses on individual self-construct. Interest has an important effect on an individual's learning process and behavior. There are three common definitions of interest: (1) interest as a characteristic…

Describes the construction of a simple apparatus capable of converting solar energy into mechanical energy. Construction of the engine'' is inexpensive, and should stimulate student interest in the idea of producing power directly from the sun. (JR)

Discusses an interactive computer algorithm which allows beginning students to solve one- and three-dimensional quantum problems. Included is an example of the Thomas-Fermi-Dirac central field approximation. (CC)

Discusses experience of teaching inservice training courses to secondary physics teachers at a teachers' college in Northern Peru. Indicates that the materials used are at the level of the IPS and PSSC materials and most teachers lack practical experience in laboratory work. (CC)

Discusses the use of a modified electron spin resonance apparatus to demonstrate some features of the expression for the transition probability per second between two energy levels. Applications to the third year laboratory program are suggested. (CC)

Describes a simplified diffraction experiment offered in a workshop with the purpose of illustrating to high school students the relation of science to society. The radii determined for cigarette smoke particles range from 0.2 to 0.5 micrometer in this experiment. Included is a description of the diffraction theory. (CC)

Describes the philosophy of anti-science as resulting from men's technological achievements and its associated boredom in relation to job and life styles. Suggests that more attention be paid to students in science education and more efforts be made with respect to the improvement of the public's understanding of science. (CC)

Reproduces the foreward of a Ph.D. thesis for the purpose of reflecting the author's story of finding a research topic. (CC)

Reviews the principles of Monte Carlo calculation and random number generation in an attempt to introduce the direct and the rejection method of sampling techniques as well as the variance-reduction procedures. Indicates that the increasing availability of computers makes it possible for a wider audience to learn about these powerful methods. (CC)