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Direct linkLee, Frank; Batelaan, Herman – Physics Teacher, 2010
It is claimed by the company NitroFill and the GetNitrogen Institute that filling car tires with nitrogen improves gas mileage considerably. The reason given is that oxygen leaks out of tires so that the increased rolling friction causes a reduced gas mileage. Because it is hard to do an actual road test, we report on a simple visual test of…
Descriptors: Science Process Skills, Science Education, Science Instruction, Teacher Educators
Vallero, Daniel A.; Braiser, Chris – Bulletin of Science, Technology & Society, 2008
Lifecycle assessment (LCA) is a valuable tool in teaching green engineering and has been used to assess biofuels, including ethanol. An undergraduate engineering course at Duke University has integrated LCA with other interactive teaching techniques to enhance awareness and to inform engineering decision making related to societal issues, such as…
Descriptors: Food Service, Engineering Education, Thermodynamics, Energy
