First watch the video:
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Then the making of:

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“ALL THE ANIMATIONS SEEN IN THIS VIDEO WERE CREATED IN CAMERA.
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Using both praxinoscopes and the technique of matching up the frame rate of the spinning record to that of the camera, no computer super-imposing was used; what you see is what rolled off the camera. The transitions between each section of animation was created by simply cutting or wiping between the bits of footage.
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All the animations were created, drawn and coloured by the director David Wilson.
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Produced by Blinkink”
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(via pühringer)