Did you know there are seven Articles and 27 Amendments to the US Constitution? Explore each and every one of them, including the Bill of Rights and other rights around the world, in a super neat US Constitution interactive. 

Experience Harriet Beecher Stowe's Uncle Tom's Cabin in an innovative, musical way. A list of audio links leads class members to spirituals from the novel, such as "Die in the Field," "The Wings in the Morning," and "Blow Ye the...

A discussion of Christian Huygens' contribution to wave optics, and particularly to our understanding of the reflection and refraction of light. Excellent diagrams and a geometric proof on why the law of reflection is mathematically...

This page is a continuation of a tutorial about light reflection and refraction. It contains a diagram and suggestions on how to derive Snell's Law, which governs the refraction of light in a medium. For background to this derivation,...

Contains a four step procedure to deriving the law of reflection using algebra, Fermat's principle, and calculus (simple derivatives). This is good for an in-class theoretical exercise.

How did the American Revolution reflect a change in American society? Read about how political participation increased across the classes, and see how the question of slavery and women's rights became a thorn in the side of those...

Cyber Law Journal, a weekly publication of the New York Times, reflects on the legal issues raised by the Internet.

A physics tutorial on designing an auditorium and solving the problem of sound reflection. Illustrated.

Being able to own land and having land availble to own brought about great change in the new American nation. Read about how this came about and why it reflected new republican ideals. See what other changes were reflected in new state...

Read about the mood of the United States people in 1980, and see how Ronald Reagan's agenda reflected that mood.