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Innovative lives     Collection of biographies and major achievements of selected inventors, both from the near past and the present. From Innovative Lives http://www.si.edu/lemelson/centerpieces/ilives/index.html

Our readers ask     Answers to common science questions - with the right answers - like why is the sky blue? What is lightning? What are the states of matter? From Blue skies http://whyfiles.org/071questions/

Math in Daily Life     Math in Daily Life: How much will you have saved when you retire? Is it better to lease or buy a car? Learn the answers to these and other mathematical questions that affect our daily decisions. From Math in Daily Life http://www.learner.org/exhibits/dailymath/

How stuff works     How everyday stuff works such as TV, refrigerator, airplane, solar cells and much more. From HowStuffWorks - Learn how Everything Works! http://www.howstuffworks.com/