Reviews historical and ongoing links between the chemical industry and art. Covers additional topics concerning the three components of color production and the molecular basis of light modification by colored compounds. (CS)

Applies chemical and physical concepts to origins of color, perception of color, opacity and transparency, and other optical effects. (CS)

Examines the kinds of chemical substances which exhibit color, including conjugated organic compounds, coordination compounds, compounds which transfer charge, and semiconductors. (CS)

Presents questions and answers regarding definitions for and differences between paints, pigments, and dyes; unique properties of diazo dyes; the differences in colorants of water base and oil base paints; and permanance of ink. (CS)

Reviews various aspects of the interaction between secondary and college chemistry teachers at the Third International Conference on Chemical Education. An excerpt is presented as an indicator of the nature and focus of the discussions. (CS)

Demonstrations involving foods that illustrate chemical concepts are described, including vaporization of liquids and Graham's law of diffusion, chemical reaction rates, adsorption, properties of solutions, colloidal dispersions, suspensions, and hydrogen ion concentration. (CS)

Describes a game intended as a laboratory exercise to help students understand temperature control in higher animals, discover how endotherms and ectotherms deal with gains and/or losses of heat, and discover the habits and habitats of higher animals and their influence on thermal regulation. (Author/SA)

Describes a general purpose algorithm which enables one to calculate the allowed energy eigenvalues for an arbitrary potential. Results of a calculation where a centrifugal potential is added to the hydrogenic Coulomb potential are discussed. (Author/HM)

Describes the use of transistors instead of valves for Lecher line and radiation demonstrations. Two oscillator circuits which provide power for Lecher line use are described. Impedance of Lecher line is also discussed. (HM)

The theoretical basis for the calculation of hydration numbers is developed. (BB)

An ebullioscopic apparatus is described in which only the difference between the boiling point of the solution and that of the pure solvent is measured. This substantially reduces the cost of the apparatus and simplifies the operation, while maintaining precision. (BB)

It is shown that exact pseudopotentials for excited states of hydrogen atoms can be derived. A very simple, novel application of pseudopotential method which displays vividly some of its limitations is presented. (Author/GA)

Presented is a form of Hamilton's principle for classical mechanics appropriate to the study of arbitrary self-sustained vibrations in one dimension. It is applied as an approximate computational tool to the study of several examples of anharmonic oscillation. (Author/GA)

Schrodinger-Einstein correspondence reveals the fact that deBroglie's doctoral thesis provided Schrodinger with much of the background and inspiration that enabled him to invent wave mechanics. (GA)

Describes an experiment designed to illustrate the basic principle involved in the process of moderation of fast neutrons by water, and the monitoring of the low-energy neutron flux using indium as a probe. (GA)