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Mathematics - Wikipedia
Mathematics is the study of topics such as quantity, structure, space, and change. There is a range of views among mathematicians and philosophers as to the exact scope and definition of mathematics.
https://en.wikipedia.org/wiki/Mathematics
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Science and Technology - Encyclopedia Smithsonian
Learn about science and technology with Encyclopedia Smithsonian.
http://www.si.edu/Encyclopedia/Search/Science%20and%20Technology
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Science - Infoplease
Everything you can hold, taste, or smell is made of matter. Matter makes up everything you can see, including clothes, water, food, plants, and animal.
http://www.infoplease.com/dk/science/encyclopedia/
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Math Concepts - HowStuffWorks
Math is often called the universal language. Learn all about mathematical concepts at HowStuffWorks.
http://science.howstuffworks.com/math-concepts
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Mathematics - Britannica
The science of structure, order, and relation that has evolved from elemental practices of counting, measuring, and describing the shapes of objects.
http://www.britannica.com/topic/mathematics
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Encyclopedia of Mathematics - Home
The Encyclopedia of Mathematics wiki is an open access resource designed specifically for the mathematics community. The original articles are from the online Encyclopaedia of Mathematics, published by Kluwer Academic Publishers in 2002. With more than 8,000 entries, illuminating nearly 50,000 notions in mathematics, the Encyclopaedia of Mathematics was the most up-to-date graduate-level reference work in the field of mathematics.
https://www.encyclopediaofmath.org/index.php/Main_Page
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Science Facts, Information, Pictures - Encyclopedia
Learn about science at encyclopedia.
http://www.encyclopedia.com/topic/science.aspx
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The Encyclopedia of Science - The World of David Darling
The World of David Darling encyclopedia of science.
http://www.daviddarling.info/encyclopedia/ETEmain.html
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Science - Britannica
Any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation.
http://www.britannica.com/topic/science
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Wolfram MathWorld: The Web's Most Extensive Mathematics Resource
The world's most extensive Mathermatic help recourse.
http://mathworld.wolfram.com