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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1567-1617
Belgian optician and mathematician who coined the term "stereoscopic." A Jesuit priest whose family was of Spanish descent, d'Aguilon studied persistence of vision and visual illusions, and in 1613 published his Opticorum. This work contained a discussion of stereoscopic projection, the phenomenon whereby a person's two eyes capture and integrate images viewed from slightly different angles, thus giving the image greater depth. Knowledge of stereoscopy—which had been recognized but unnamed since the time of Greek astronomer Hipparchus (c. 190-c. 120 B.C.)—would prove useful in the development of binoculars and, much later, photography.