News Projects Exhibits prism goggles mri library test your memory seeing verses hearing cafe wall illusion Graphics About Resume Links	cafe wall illusion This exhibit prototype was designed and built in collaboration with The Franklin Institute for the upcomming Your Brain Exhibit. The interactive will be incorporated into a section of the exhibit which displays various optical illusions. The visitor experiences the "cafe wall" optical illusion when they approach the device. The grey lines in between each row of tiles seem crooked at first. The visitor slides the handle along the bottom of the interactive causing the rows of tiles to align. This reveals that the grey lines are actually parallel to one another. This 2D display will be accompanied by a large 3D model of the "cafe wall" illusion. The 3D model enables young children to build the illusion using foam blocks.
			The device creates the illusion of the grey lines to seem crooked.