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Relating to or denoting the early phase of the Stone Age, lasting about 2.5 million years, when primitive stone implements were used
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This is a Victorian toy constructed from a simple disk or card featuring a different picture on each side and attached to two pieces of string.
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The phenakistoscope uses the persistence of motion principle to create an illusion of motion
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This is relatively easy to build. It can be turned at a variable rate to create slow-motion or speeded-up effects.
