Alternative energy sources have become increasingly important as the production of domestic oil has declined and dependence on foreign oil has increased. Historically, there have been four time periods during which the United States was in fact crippled by oil shortages. These time periods include: (1) the early 1900s; (2) World War II; (3) the…

The Zimbabwe Secondary School Science Project (ZIM-SCI) developed student study guides, corresponding teaching guides, and science kits for a low-cost science course which could be taught during the first 2 years of secondary school without the aid of qualified teachers and conventional laboratories. This ZIM-SCI study guide presents activities…

The Zimbabwe Secondary School Science Project (ZIM-SCI) developed student study guides, corresponding teaching guides, and science kits for a low-cost science course which could be taught during the first 2 years of secondary school without the aid of qualified teachers and conventional laboratories. This teaching guide, designed to be read in…

This study unit advocates the use of biomass conversion techniques with municipal solid wastes as a viable action for energy development. The unit includes: (1) an introductory section (providing a unit overview and supportive statements for biomass conversion; (2) a historical review of energy use from wastes; (3) a section on design and…

This module is one of a series of teaching guides that cover diesel mechanics. The module contains six instructional units that cover the following topics: (1) introduction to fuel injection systems and components; (2) injection nozzles; (3) distributor type injection pumps; (4) unit injectors; (5) in-line injection pumps; and (6) pressure timed…