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4.4
(si*)
>40
7
  • NEWTON Bulletin Board System
  • www.newton.dep.anl.gov
  • Ask-a-scientist service designed for K-12 teachers and their students - operated by the Argonne Nat'l. Laboratory, Div. of Educational Programs.
4.0
(si*)
<10
6
  • How Things Work
  • www.howeverythingworks.org
  • Ask about almost anything related to the physical world, and check the well-organized archives for answers to previous interesting questions.
3.9
(si*)
<5
6
  • What is What
  • what-is-what.com
  • Aims to give you easy answers to everyday questions. We define words, acronyms, and ideas. We have a computer-related and open-source slant.
3.5
(si*)
<5
3
  • Ask Dr. Science
  • www.drscience.com
  • America's foremost authoritarian on the world around us. Or at least the world around him.
3.4
(si*)
-
5
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