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Engineering Top 20
Airplanes, telephones, refrigerators, and spacecraft are among the life-changing technological accomplishments highlighted at the National Academy of Engineering’s Greatest Engineering Achievements of the 20th Century Web site. A variety of illustrations, a brief history, and a timeline of important landmarks accompany each entry. Go to: http://www.greatachievements.org/
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The scientists in this article may want to adapt their solar concentrator for a more prosaic use: cooking. In the early 1970s, I was involved in a project to build a self-sufficient dwelling that drew solely on the wind and sun for its power. We looked into using fiber optics to transmit solar energy to […]
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Solar Surgery: Sunlight acts like laser
By channeling sunlight down a fiber optic cable, scientists have produced laserlike beams that can burn tumors off major organs.
