What is topology? And how does this area of mathematics allow us to study the shape and interconnectedness of the universe we live in? Video presentation answers these questions via a lively presentation of discussion, examples, and...

A historical and factual overview of Humanistic Psychology as a Contemporary School of Psychology.

[Free Registration/Login may be required to access all resource tools.] Discusses how cells are organized in living things and explains the origin and significance of multicellular organisms.

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

Seven pages all about Carbon 14 Dating. Information on half-life, Carbon 14 used to date specimens and artifacts, limitations, charts and graphs. Michael E. Brown Ph.D. contests that the limitations of Carbon 14 dating support the theory...

In this interactive tutorial you will learn about the theory of continental drift and why it was ultimately rejected. Then learn about the theory of plate tectonics and the evidence to support it. Lastly discover the types of boundaries...

This lesson focuses on map coloring and the problem of proving that 4 colors would work for all maps. Francis Guthrie had to color a map of counties in England. He observed that four colors seemed to suffice for any map he tried, but he...

British statesman, parliamentary orator and political thinker, played a prominent part in all major political issues for about 30 years after 1765, and remained an important figure in the history of political theory.

A good overview and description of propaganda. Looks at types, techniques used, theories and models, and propaganda directed at children.

Charles Darwin's theory that all living organisms are connected in some way has been confirmed through intense studies over centuries. Understand the similarities that bond all things living to the same family tree by checking out this...

An introduction to the Standard Model, a theory which attempts to explain atomic structure using leptons, quarks, and force carrier particles.

The nature of insulators is described at the atomic level. Band gap theory is used to explain what distinguishes insulators from conductors.

A good discussion of the economic theories of Henry George. He had definite ideas of how to tax property, and the value of free trade.

The expansion and explosion of a star is described at it goes through its nova phase. Current theories are discussed.

In this journal article, the authors sought to determine the relationship between theory from teacher training programs and actual reality of what happens in an instructional setting with new teachers. The researchers concluded that...

This site contains a paper, "A Survey of Mr. Hobbes His Leviathan" by Edward, Earl of Clarendon, written on Hobbes's "Leviathan" and game theory. After a lengthy and unreadable introduction, the author surveys Hobbes's work by chapter.

Peter Debye carried out pioneering studies of molecular dipole moments, formulated theories of magnetic cooling and of electrolytic dissociation, and developed an X-ray diffraction technique for use with powdered, rather than...

The discovery of radio waves, which was widely seen as confirmation of James Clerk Maxwell's electromagnetic theory and paved the way for numerous advances in communication technology, was made by German physicist Heinrich Hertz. In the...

Enrico Fermi was a titan of twentieth-century physics. He outlined the statistical laws that govern the behavior of particles that abide by the Pauli exclusion principle and developed a theoretical model of the atom in his mid-twenties....

Discusses the topic of relevance (or relevant) logics. Presents the theory and applications of relevance logic, which attempts to resolve "fallacies of relevance."

Speculates who will be Al-Zarqawi's successor and offers theories and insight into who will replace Zarqawi in Iraq. (2006)

This site from the Shakespeare Oxford Society contains a great deal of information in support of the theory that Edwared de Vere, the Earl of Oxford, actually wrote the works traditionally attributed to Shakespeare.

A lesson where students investigate how paleontologists interpret evidence from dinosaur finds in order to develop hypotheses and theories about how they lived. Includes downloadable worksheets.

This video segment adapted from 1421: The Year the Chinese Discovered America? introduces the theory that the Chinese discovered America prior to Columbus.