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is a scientist with interests in everyday aspects of energy, cars, light-bulbs and other consumer products, and the broad intersection of science and engineering with our lives. Dr. Peters, a native of the rural Northwest, was educated in geology at Princeton and Harvard. Follow her on the pages of Bronx.com, on the web, and on Twitter @RockDocWSU. Her columns are a service of the College of Agricultural, Human and Natural Resource Sciences at Washington State University.