Light Deformation

This exhibit is currently not on display at Technorama.
An illuminated white form curves and multiplies in the air. The shadow of this form is a matching silhouette. A button allows you to slow the white form down to a stop, so it becomes clear that it is actually a flat white disc. One’s perception of the disc is radically transformed into a warped shape because while the disc rotates at high speed a line of light scans up repeatedly. Your perception of a curved shape is composed from a succession of single lines illuminating the disc at slightly different points in its rotation.

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