This learning module is concerned with the temperature field, the heat transfer rates, and the coolant pressure drop in typical liquid metal fast breeder reactor (LMFBR) fuel assemblies. As in all of the modules of this series, emphasis is placed on developing the theory and demonstrating the use with a simplified model. The heart of the module is…

Topics of general interest in park and recreation management and programming are discussed. This issue deals with energy/environmental education in parks. Various professionals in the fields of park and recreation, education, conservation, energy, historic preservation, and government have contributed articles. Some describe ongoing programs and…

The Massachusetts Institute of Technology provides a catalog of 16mm filmed and videotaped lectures and demonstrations. Each listing includes title, short description, length of presentation, catalog number, purchase and rental prices, and indications as to whether the item is film or videotape and black-and-white or color. The catalog is divided…

Recommends determining molecular weights of liquids by use of a thermocouple. Utilizing a mathematical gas equation, the molecular weight can be determined from the measurement of the vapor temperature upon complete evaporation. Lists benefits as reduced time and cost, and improved safety factors. (ML)

Two approaches to the content of thermodynamics were used in an introductory college physics course: traditional organization and organization based on Ausubel's learning theory. The influence of these organizations on engineering student's (N=58) cognitive structure was investigated using a word association test analyzed through hierarchical…

Four applications of microcomputers in the chemical laboratory are presented. Included are "Mass Spectrometer Interface with an Apple II Computer,""Interfacing the Spectronic 20 to a Computer,""A pH-Monitoring and Control System for Teaching Laboratories," and "A Computer-Aided Optical Melting Point Device." Software, instrumentation, and uses are…

Reviews the problem of certain logical and conceptual shortcomings in textbook presentations of the energy concepts in introductory physics. Discusses concepts and principles related to thermodynamics and echanics. Provides many formulas and diagrams. (YP)

Suggests an apparatus to improve the measurement of the mechanical equivalent of heat. Describes the materials needed to construct the apparatus; the methodology of an experiment to measure the heat gained by lead shot falling through a distance of 100 meters; and the calculations made to register that gain. (MDH)

Discussed is how modern physics is usually approached via the photoelectric effect and how this can lead to a physically wrong picture of light. The importance of using the quantum theory developed after 1920 to explain the properties of light is discussed. (KR)

The purpose of this study was to investigate the effectiveness of cognitive conflict based physics instruction over traditionally designed physics instruction on preservice primary school teachers at grade 2. The subjects were 82 (27 boys, 55 girls) second grade pre-service teachers in two classes. One of the classes (42 students) was randomly…

This book is a result of a workshop where 14 science educators were invited to draft chapters on the implications that the research studies in a specific content area of science have for its teaching. The relations between social forces and perceptions of purpose and content lay behind discussions in the workshop, and influenced the emergence of…

This study investigates how students participating in the same curriculum construct understanding in elementary thermodynamics during a semester-long eighth-grade physical science class. Two questions were addressed: (1) How does the learners' understanding change during the study of elementary thermodynamics? and (2) What role do students'…

Discusses the problems created in graduate chemical engineering programs when students enter with a wide diversity of understandings of transport phenomena. Describes a two-semester graduate transport course sequence at the University of Notre Dame which focuses on fluid mechanics and heat and mass transfer. (TW)

Discusses how to address the concept of chemical equilibrium through the use of thermodynamic activities. Describes the advantages of setting up an equilibrium constant in terms of activities and demonstrates how to approximate those activities by practical measures such as partial pressures, mole fractions, and molar concentrations. (TW)

States that quantitative modelling allows teachers to concentrate more on qualitative understanding. Suggests the main benefits as (1) repetitive calculations are reduced allowing greater attention to be focused on underlying models; (2) more "what if" models can be tested; and (3) a wider variety of data can be used to test models. (MVL)