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Despite this, persistence of vision continues to be incorrectly taught in schools as the physiological mechanism behind video's illusion of movement.
Glossary of papermaking terms compiled for Penicuik Historical Society: Papermaking Tercentenary Project 2009 2 Word / Term Definition A Acid free Paper ...
Acid Free - Acid free refers to papers without acid (pH) in the pulp at the time of manufacture. Acidity in the paper can decrease its longevity.