HowStuffWorks, a wholly owned subsidiary of Discovery Communications, is the award-winning source of credible, unbiased, and easy-to-understand explanations of how the world actually works. The site is now an online resource for millions of people of all ages. This link points directly to the How Stuff Works videos.
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http://videos.howstuffworks.com –
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The National Science Digital Library
http://nsdl.org –
NSDL is the Nation's online library for education and research in Science, Technology, Engineering, Mathematics.
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