The following sections of this BookRags Literature Study Guide is offprint from Gale's For Students Series: Presenting Analysis, Context, and Criticism on Commonly Studied Works: Introduction, Author Biography, Plot Summary, Characters, Themes, Style, Historical Context, Critical Overview, Criticism and Critical Essays, Media Adaptations, Topics for Further Study, Compare & Contrast, What Do I Read Next?, For Further Study, and Sources.
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The following sections, if they exist, are offprint from Beacham's Encyclopedia of Popular Fiction: "Social Concerns", "Thematic Overview", "Techniques", "Literary Precedents", "Key Questions", "Related Titles", "Adaptations", "Related Web Sites". (c)1994-2005, by Walton Beacham.
The following sections, if they exist, are offprint from Beacham's Guide to Literature for Young Adults: "About the Author", "Overview", "Setting", "Literary Qualities", "Social Sensitivity", "Topics for Discussion", "Ideas for Reports and Papers". (c)1994-2005, by Walton Beacham.
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1819-1868
French physicist who demonstrated the earth's rotation using a pendulum. Foucault made important discoveries in many areas, including the understanding of crystals, inventing the gyroscope (used in inertial navigation systems today), and better processes for silvering telescope mirrors. Foucault's most famous discovery, however, was the pendulum named after him. Attached to a nearly frictionless pivot, the Foucault pendulum swings in a constant plane while the earth rotates beneath it, making the plane of the pendulum seem to rotate.