A great deal of the literature on the relationship between anxiety and performance has come from a cognitive-behavioral perspective. This Athletic Insight paper examines the relationship between the two constructs from a psychodynamic...

This site shows the relationship between price and quantity supplied, and why the relationship between price and quantity is positive or direct.

A page describing the concept of temperature and temperature scales. An interactive JavaScript form allows the visitor to investigate the relationship between the Kelvin, Celsius and Fahrenheit scales. Simply enter a value and allow the...

The United States' relationship with Iran has been frigid since the revolution in 1979. This site explains what is currently happening between the two nations and has links to past economic pressures the U.S. put on Iran.

The United States' relationship with Iran has been frigid since the revolution in 1979. This site explains what is currently happening between the two nations and has links to past economic pressures the U.S. put on Iran.

An introduction to the Konigsberg Bridge problem and its relationship to network theory.

Describes common uses of the screw, including its relationship the the inclined plane and mechanical advantage.

Describes common uses of the screw, including its relationship the the inclined plane and mechanical advantage.

Explains the relationship between force and mechanical advantage with diagrams, examples and calculations.

You can download a database made by Dr. Robert LaVinge. The database will give you almost every predator prey relationship.

A complete lab where a student verifies the force versus distance relationship of Coulomb's Law.

This personal site provides an interview with Howard Nemerov, third poet laureate of the United States. Interviewer is Grace Cavalieri, and this is part of her PBS series on The Poet and the Poem. The subject matter spreads from the...

Map of Africa in 1899 showing the colonial possessions of European powers on the continent established at the Berlin Conference of 1885. This map shows major cities and trade centers, railroad routes and canals, major river systems, and...

A map of Africa shortly after the Berlin Conference of 1885, which established the European colonial territory claims on the continent. These European and independent boundaries include Algeria and the Saharan Sphere of French Influence,...

A physical and political map of Africa prior to the Berlin Conference of 1885, which established the European colonial territory claims on the continent. This map shows the African states of Morocco, Algiers (Algeria), Tripoli, Egypt,...

A map of Africa showing the continent prior to the Berlin Conference of 1885, when the most powerful countries in Europe at the time convened to make their territorial claims on Africa and establish their colonial borders at the start of...

A map of Africa after the Berlin Conference of 1885, which established the European colonial territory claims on the continent. This map shows the Belgian, British, French, German, Italian, Portuguese, and Spanish claims, and the Turkish...

Map of pre-colonial Africa, showing the predominately native countries and territories of the African continent in 1879. The counties include the Barbary States of Morocco, Algeria, Tunis, Tripoli and Fezzan, the Egyptian territories of...

A map of Africa in 1876 showing native African States and European possessions of Britain, France, Spain and Portugal prior to the Berlin Conference of 1885. On this map, European possessions include Algeria, Cape Colony, Griquala Land...

A map from 1901 of Europe, showing the physical features of the region. This map is color-coded to show general elevations from sea level to over 6,500 feet, mountain systems, drainage divides, lakes, rivers, coastal features, and the...

A map of South America from 1870 showing the political boundaries of the time. The map shows capitals, major cities, ports, rivers, terrain and coastal features. Mountain chains and systems are shown by hatchure. An outline map of...

A map from 1901 of South America showing the political boundaries at the time, including Columbia (extending to Costa Rica), Venezuela, Guiana (British, Dutch, and French), Ecuador, Peru, Brazil, Bolivia, Chile, Argentine Republic, and...

A map of South America from 1906 showing the political boundaries of the time. The map shows capitals, major cities, ports, rivers, terrain and coastal features. An outline map of Pennsylvania at the same map scale is included to show...

A map from 1901 of South America showing the physical features of the region. This map is color-coded to show general elevations from sea level to over 6,500 feet, mountain systems, drainage divides, lakes, rivers, coastal features, and...