For electric energy to get from the generating station to a home, it must pass through a transformer, a device that can change voltage levels easily. This article describes how transformers work, covering the following topics: (1) the magnetism-electricity link; (2) transformer basics; (3) the energy seesaw; (4) the turns ratio rule; and (5)…

Airplane travelers are dismayed by the long lines and seemingly chaotic activities that precede boarding a full airplane. Surely, the one who can solve this problem is going to make many travelers happy. This article describes the Jet Travel Challenge, an activity that challenges students to create some alternatives to this now frustrating…

Examines how society has created a dichotomy between the teaching of science and technology, deriving from the mind/hand and process/content split. Argues that a rigid, compartmentalized approach does not promote integrated learning and that technology education can overcome this barrier. (JOW)

Science education and technology education have a common lineage. Contrary to prevailing beliefs, technology involves both process and content. It cuts across and unifies curricula and should be taught across all grade levels. (JOW)

A fun design challenge that can be used in the classroom and across the grades is presented in this article. No special tools, hardware, or supplies are needed, only imagination and teamwork. It is a fun exercise that illustrates technology education principles. This design challenge is a mirror on the world, very similar to how projects are…

In this article, the author explores some examples in which mathematics has given people a better perspective on their lives. Mathematics gives people work purpose, pointing them in new directions, opening new avenues for exploration and understanding. The more they understand, the better they can compute and the more elegant their designs,…

Wind energy is the fastest-growing renewable energy source in the world. Over the last 20 years, the wind industry has done a very good job of engineering machines, improving materials, and economies of production, and making this energy source a reality. Like all renewable energy forms, wind energy's successful application is site specific. Also,…

A great deal of similarity exists between engineering and technology education. Many schools and state education administrators are working to bring engineering principles and problem-solving approaches into the technology education classroom. More and more, technology education is viewed as a breeding ground for tomorrow's new crop of engineers.…

Employers like the problem-solving approach of technology education because it develops team building, discipline, content and process, knowledge of the capitalist system, and multidisciplinary skills. (JOW)

The nation's industrial revolution began after the Civil War. Thomas Edison codified the simple and repeatable process of invention, and off the country went on an inventive joy ride that shows no sign of letting up. Undoubtedly, Edison's greatest invention was the process of industrial research, for equipped with it people can make products and…

A photovoltaic panel can convert sunlight directly into electricity. If one connects enough of them in a series-parallel arrangement called a solar array, they can provide about half of a home's annual electricity needs. The panels comprise specially treated electronic materials that when exposed to sunlight will give up electrons freely, and…

In this article, the author describes how Mr. Morris Lerner taught his class and shares what he learns from the science teacher. The author says Mr. Lerner greatly influenced his life and was the greatest teacher he ever had. Mr. Lerner taught the basic principles of technology education before most folks could spell the term--and that has made…

Over the past 25 years, the author has had the opportunity to study the subject of solar energy and to get involved with the installation, operation, and testing of solar energy systems. His work has taken him all over the United States and put him in contact with solar experts from around the world. He has also had the good fortune of seeing some…