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Featured Article: Federalist No. 26

Alexander Hamilton, author of Federalist No. 26
Federalist No. 26, titled "The Idea of Restraining the Legislative Authority in Regard to the Common Defense Considered", is an essay written by Alexander Hamilton, the twenty-sixth of the The Federalist Papers. It was published on December 22, 1787, under the pseudonym Publius, the name under which all The Federalist papers were published. Federalist No. 26 expands upon the arguments of a federal military Hamilton made in No. 24 and No. 25, and continued in No. 27 and No. 28.

Popular Article: Solid

A quartz crystal is an example of a crystalline solid
A solid is one of the four principal states of matter. A solid object is characterized by resistance to deformation and change of volume. The branch of physics that deals with solids is called solid-state physics, and it is a type of condensed matter physics. Materials science is primarily concerned with properties of solids such as strength and phase transformations. It overlaps strongly with solid-state physics. Solid-state chemistry overlaps both these fields, but it is especially concerned with the synthesis of novel materials.

Did you know?

In China, girls' feet were bound so the arch was forced upward, resulting in a "lotus foot" (source: Foot binding)