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DICTIONARIES > SCIENCES AND TECHNIQUES
Dream Dictionary
To help you analyse the meaning of your dreams.
Science Resources
Catalog of U.S. Government Science and Technology Web Site Resources - For the scientist, engineer, and science aware citizen.
Visual Dictionary
The Visual Dictionary is a collection of words in the real world.
Optical Illusions and Visual Phenomena
66 Optical Illusions & Visual Phenomena. Each illusions is demystified.
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