Some examples of high technology windmills. (MLF)

This learning activity describes how a robot moves and the systems that power robots. Provides detailed information about XBOT, which uses modified servomotors to power its wheels. (JOW)

The last two decades have seen a rebirth of wind machines on the rural landscape. In ironic fashion the wind's kinetic energy has grown in significance through its ability to generate commercial amounts of electricity, the commodity that a few generations earlier hastened the demise of the old Great Plains windmill. Yet the reemergence of wind…

The school curricula are widely believed to be the best vehicle for generating public awareness of and action related to areas of energy concern. In an attempt to build the capacity of schools to address key environmental issues in Ethiopia, a pilot project had been designed in 2004. The principal aim of the project was to bring about positive…

Due to a stronger dependency on biomass for energy, there is a need for improved technologies in biomass-to-energy conversion in Tanzania. This paper presents a life cycle assessment (LCA) of pyrolysis technology used for conversion of wood and wood waste to liquid biofuel. In particular, a survey of environmental impacts of the process is…

Recent studies have shown wind power to be an eminently practical and potentially substantial source of electricity and direct mechanical power. Wind machines range from simple water-pumping devices made of wood and cloth to large electricity producing turbines with fiberglass blades nearly 300 feet long. Wind is in effect a form of solar…

The booklet is designed to assist teachers in improving locally developed classroom tests. It is a collection of 674 sample multiple-choice questions (with scoring keys) intended primarily for use as pretests, quizzes, or final examinations by secondary level teachers. The questions are organized around four industrial arts subject areas: drawing,…

The manual was developed as a reference for teaching students about transmissions in farm tractors. The manual is divided into five sections: (1) transmission history, (2) gears and bearings in transmission, (3) sliding-gear transmissions, (4) planetary gearing, and (5) glossary. The working principles of the sliding-gear transmission, the most…

Although education in rural communities is an important priority, in many cases, electricity is not available to support rural educational activities. Renewable energy systems present a reasonable solution to support activities such as lighting, computers, telecommunications, and distance learning. There are certain factors and criteria that need…

Annotated bibliographies of 36 selected technical periodicals for automotive transportation. (GR)

Describes how an automobile engine can be used to create enthusiasm in the industrial arts classroom. (GB)

This article summarizes the inventory findings related to nonfossil energy technologies and energy conservation. It is divided into four trade clusters that are most significantly affected: construction; heating, ventilation, and air conditioning; automotive; and power generation. (Author/CT)

Discusses the reliability and versatility of using photovoltaics whereby solar cells convert sunlight directly into electricity. The growing concern of global warming promises to transform photovoltaics into a major energy producer. (Author/SAH)