The air-to-air heat exchanger (a fan powered ventilation device that recovers heat from stale outgoing air) is explained in this six-part publication. Topic areas addressed are: (1) the nature of air-to-air heat exchangers and how they work; (2) choosing and sizing the system; (3) installation, control, and maintenance of the system; (4) heat…

A detailed examination of the nature and function of general aviation and a discussion of how the National Aeronautics and Space Administration (NASA) helps keep it on the cutting edge of technology are offered in this publication. The intricacies of aerodynamics, energy, and safety as well as the achievements in aeronautical experimentation are…

This report consists of three parts. The first part provides advice (in the form of questions and answers) to prospective individual power producers who are considering investing in electricity-producing systems and in generating their own power. A list of Public Utilities Regulatory Policies Act (PURPA) regulations is included. This legislation…

This three-section report provides introductory information about biogas production and its application to farm environments. The first section discusses the various components of a biogas production system (a system that converts organic wastes into a usable form of energy), explains the system's benefits and liabilities, and provides a brief…

Compiled in this guide are 23 previously published documents for use by secondary school industrial arts teachers who want to incorporate energy studies into their curricula. Over half of the entries describe energy-related projects such as fireplaces, solar water heaters, and solar ovens. Other materials presented address the place of energy in…

This two-part report explores the efforts of businesses and individuals to improve the thermal performance of windows. Part I discusses the basics of what makes a window product insulate or save energy. Topic areas addressed include saving energy lost through windows, key components of window insulation, three basic types of window insulation,…

This report aims to assemble a consistent set of state-level data that approximates the technology infrastructure of the United States. The Technology Administration's Office of Technology Policy undertook this project largely in response to the sentiment of federal, state, and local counterparts that the challenge of defining technology…

Presented are guidelines for buying solar systems for the individual consumer. This is intended to help the consumer reduce many of the risks associated with the purchase of solar systems, particularly the risks of fraud and deception. Engineering terms associated with solar technology are presented and described to enable the consumer to discuss…

This volume links the year's current news to encyclopedic and almanac-style information on science and technology. This second edition is completely updated, offering full news coverage for 1999, revised statistical tables, and updated facts and figures. The timeline has been expanded to include more problems and catastrophes associated with…

Presents background information concerning microwave properties useful to persons considering the suitability of various materials to microwave processing. (CS)

This issue focuses on word processing. This article discusses choosing a word processor. It is noted that the text base of most processors is of the standard letter of manuscript variety, and cautions the consumer to be aware of the limitations of these devices. (MP)

Lists a selection of trade books written in Spanish for young readers. Books are categorized under the headings For the Very Young, Biology, Ecology, General Science, Physical Science, and Technology. (YDS)

This document is a selected listing of periodicals (journals, newsletters, bulletins, and others) in the field of science and technology education that are published by UNESCO member states and by international organizations. Its purpose is to facilitate the diffusion and exchange of information for those concerned with science and technology…

Moisture problems are identified as an important element in home energy conservation programs. A systematic approach to understanding, recognizing, solving, and preventing moisture-related problems is offered in this four-section report. Section I examines the root of moisture problems. Section II discusses symptoms and causes of excess moisture…

Presents the questionnaire sent to American Society for Engineering Education members concerning graduate study and research. Also lists the names of engineering and technical colleges replying to the questionnaire. (CK)