This interesting and interactive site offers information and activities on exponential functions, tangents and slopes, and "The number e."
Journey with the chicken egg, from formation to hatching, and learn about its embryology.
American businessmen in the late 18th and 19th centuries were very interested in finding markets all over the world for their goods and actively pursuing opportunities for foreign trade. The young nation needed to earn money to pay back war debts and to develop its own institutions, infrastructure, and economy. Remember, too, that England had always been the Americans' biggest trading partner, but after the revolution this relationship was seriously damaged. The United States had to find new trading partners in a global economy gripped by European mercantilism.
Most well-educated American colonists (including early American leaders like Thomas Jefferson, James Madison, and Benjamin Franklin) were familiar with the writings andideas of European scholars, so it makes sense that Americans came to accept the same basic ideas about the importance of trade and commerce. The following excerpt is from one of many pamphlets written by the English author Daniel Defoe. This one was published in1713 and was widely read.
This is a unit overview of the economic trading history of China.
Uses an egg to demonstrate the concept of axis of symmetry. Put your cursor over the picture to "move" around the egg. Offers links to related concepts, including Cartesian Ovals and Ovals of Cassini.
This site contains an experiment that demonstrates how transporting a tangent vector around a closed path on a sphere will cause it to come back twisted. [Requires Java.]
Formulas on calculating the area of a general quadrilateral and special cases of quadrilaterals.
This resource details the geometric mean, giving workable examples for the reader to attempt.
This rich source includes a biography of Edgar Lee Masters (1869-1950 CE), a bibliography of secondary sources, his comments on Spoon River Anthology, a look at him as a trial lawyer and critic, as well as external links.
This site houses three poems in full text from the great American poet Archibald MacLeish (1892-1982 CE), as well as criticism on two of his most famous. The three pieces are 'Baccalaureate', 'Two Poems from the War', and 'An Eternity'.
This site from Modern American Poetry comes from the English department at the University of Illinois at Urbana-Champaign and proves to be a great resource for information about Jean Toomer (1894-1967 CE). The site contains links to a biography of his life, reviews of some of his most famous work and also links to other poetry information.
A collection of interviews with Robert Pinsky, articles and speeches by him, and essays about his work.
A useful collection of information on Alexie and by Alexie, covering both biography and his work, this site includes excerpts from interviews as well.
This site presents information on T.S. Eliot's (1888-1965) life and career (including a biographical timeline), a bibliography of his works, a discussion of selected works, and links to related sites.
A very good page that uses a Q&A format to describe the process of gel electrophoresis. Interactive in a rudimentary way.