(4) Image of rotation

Drawing equipment is used to describe images of rotating things (Fig. 462). Taking a photograph of actually moving objects is another method. In this case, the movement of an object moving at a high speed can be expressed utilizing the effect in a blurred picture using a slow shutter speed (Fig. 464).
 
 

462   464   463   465   Figure 462: Image of rotation drawn using a pair of compasses. Figure 463: Pattern of a book cover, by Michiaki Takatsu. Figure 464: Photograpphy of a rotating body in a catalog of an exhibition. Figure 465: Shape drawn by a machine.

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