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Chemistry is the study of matter and energy and the interactions between them. Get facts for the elements in the periodic table. Find chemistry demonstrations and experiments and science fair projects. Get chemistry homework help with worked example ...

Tools and Basic Information for Design, Engineering and Construction of Technical Applications

Physical Measurement Laboratory Homepage

Computer Glossary, Computer Terms – Technology Definitions and Cheat Sheets from Whatis.com – The Tech Dictionary and IT Encyclopedia

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.

Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia e...

MIT is devoted to the advancement of knowledge and education of students in areas that contribute to or prosper in an environment of science and technology.

Eric Weisstein

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The Khan Academy is a not-for-profit 501(c)(3) with the mission of providing a world-class education to anyone, anywhere. Despite being the work of one man, Salman Khan, this 1600+ video library is the most-used educational video resource as measure...