Full text to Frederick Douglass's essay "The Future of the Colored Race."

Discover the evidence scientists have found to support the idea of evolving skin color. Pigments in the skin may be linked to where our ancestors lived.

This paper proposes one of the first scalable methods for estimating the number of clusters of solutions of graph coloring problems using a belief propagation like algorithm.

An in-depth discussion on reflection of light can be found here. Among the topics discussed include are the difference between specular and diffuse reflection, concave and convex mirrors, facets, total internal reflection, and much more....

This site contains U.S. Equal Employment Opportunity Commission information about race discrimination.

The full text of the Supreme Court decision of Shelley vs. Kraemer, relating to the enforcement by the courts of private agreements that exclude persons of color.

Comprehensive and sophisticated overview of light refraction includes an historical overview of the subject and explanations of the mathematics that underpin refractive indexes, the relative index of refraction, Snell's law, and light...

An online exhibit that provides a collection of colorful artifacts related to L. Frank Baum's "The Wizard of Oz." See a poster promoting Baum's children's books as well as many book covers, artwork from the "The Wizard of Oz," personal...

The history and style of Navaho weaving (blankets and rugs) is discussed in this richly illustrated, scholarly essay. With information about characteristic patterns used, color emphasis, and other aesthetic qualities.

A sophisticated map tool that shows the capability of soils for agriculture, with or without irrigation, for the whole of the United States. Enter a location and a color coded map is shown, along with a key for interpreting it. The...

Manipulate the primary color circles of light to see how overlapping the circles affect the colors. An explanation is included.

The papers of educator, lecturer, suffragist, and civil rights activist Mary Church Terrell consist of approximately 13,000 documents. Spanning the years 1851 to 1962, with the bulk of the material concentrated in the period 1886-1954,...

In this Inquiry, young scholars engage in a debate between two characters about when a bed-and-breakfast (B&B) should have a fall leaf-peeping special to maximize the guest experience. Students are introduced to Budburst, a citizen...

Color-by-numbers PET images allow comparison of active areas in a drug-free brain and in a cocaine addict's brain.

Challenge yourself with this puzzle. Try to connect the dots of the same color with horizontal and vertical segments without leaving the grid and without crossing the lines.

[Free Registration/Login Required] Here you will find all kinds of fun resources to celebrate the 100th day of school. Reproducible bookmarks, certificates for perfect attendance, coloring and dot-to-dot activities, math activities,...

The USArray Ground Motion Visualization (GMV) is a video-based IRIS DMS product that illustrates how seismic waves travel away from an earthquake location by depicting the normalized recorded wave amplitudes at each seismometer location...

This article focuses on the 1965 Immigration Act which opened American doors to people from all parts of the globe, regardless of skin color, but by focusing on re-uniting families, it discriminates some groups.

This lesson will allow young scholars to perform pH tests that determine if various solutions are acids or bases (cognitive). Students will test common household solutions such as water, vinegar, milk, and orange juice use pH indicator...

In this short interactive lesson, students learn about the severity and prevalence of diabetes, particularly for people of color.

Colorful resource for learning fun facts about sloth bears with photographs as well as information regarding their physical characteristics and unique features.

Colorful resource for learning fun facts about pythons with photographs as well as information regarding their physical characteristics and unique features.

Women inventors are behind a wide range of key innovations, from Kevlar to dishwashers to better life rafts. Female inventors have played a large role in U.S. history, but haven't always received credit for their work. Women --...

This website, from the University of Edinburgh, provides a lengthy glossary of computer graphics terms written by Olin Lathrop, author of "The Way Computer Graphics Work". This site provides simple definitions of basic terms; no graphics...