In an interview with the archivist of the Motion Picture Unit in the National Archives, holdings of various libraries are discussed, as are potential uses historians may find for film. (JB)

The common definition is shown to be false. A modern definition must be based on the first and second laws of thermodynamics and in terms of a set of algebraic expressions written in such a way that their sum does not change when a system is isolated. (DF)

Describes a surgical technique for performing pinealectomics, applicable to classroom and laboratory studies, by using a head-holding device for small animals and a flat dissecting tray outfitted with holding straps for larger animals. (CC)

A biographical sketch of Nikola Tesla, once regarded as a foremost electrician, is presented. His major works are described in the article. (PS)

Author suggests that students be historians and be involved in the process of history rather than rely on textbooks filled with shaky generalizations. (Author/RK)

Describes use of video equipment to record laboratory experiments which can then be replayed for closer analysis of results. (PS)

Study of Canada Goose in schools can provide opportunities for many activities such as poetry writing, art, ecosystems, and outdoor education. Provides some background information about these birds. (PS)

Collecting, handling, and preserving insects reveals many things which books fail to cover, and field trips often prove to be excellent catalysts in developing young entomologists. (Author/DF)

The present conflict between creationists and evolutionists may appear to be focused on demanding equal time in school curriculum, but an attack may be made in the future on the scientific method itself. Stronger arguments should be made against creationists' viewpoint to uphold the rationale of scientific scrutiny before accepting a belief as…