Publisher: Wikipedia 2014
An optical illusion (also called a visual illusion) is characterized by visually perceived images that differ from objective reality. The information gathered by the eye is processed in the brain to give a perception that does not tally with a physical measurement of the stimulus source.
Home page url
Download or read it online for free here:
by Central Intelligence Agency - Project Gutenberg
From Afghanistan to Zimbabwe, The CIA World Factbook 2010 offers complete and up-to-date information on the world's nations. This guide has been updated with detailed information on politics, populations, military expenditures, economics, and more.
This is a wikibook created by students and teachers of Technical and Professional Writing. It is intended to be used as a guide for anything from writing a resume and cover letter to a company memo, report, or proposal once you are on the job.
by Donald Keyhoe
In a personal style, Keyhoe provides the details of his investigation; he talks with witnesses and reviews the fascinating history of the phenomenon. The book was highly influential, and gave birth to a mythology that has lasted to the present.
by John Fitzgerald - Callan Press
There are many books promoting blood sports in shops and libraries nationwide. This is one of the very few that offers an anti-blood sports perspective and may prove useful to readers of all ages and and to students undertaking research projects.