Optics principles. For example, the Ames room, Hering, Müller-Lyer, Orbison, Ponzo, Sander, and Wundt illusions all rely on the suggestion of the appearance of distance by using converging and diverging lines, in the same way that parallel light rays (or indeed any set of parallel lines) appear to converge at a vanishing point at infinity in two-dimensionally rendered images with artistic perspective. This suggestion is also responsible for the famous moon illusion where the moon, despite having essentially the same angular size, appears much larger near the horizon than it does at zenith. This illusion so confounded Ptolemy that he incorrectly
Parallel Lines Parallel Lines Parallel Lines is the third studio album by American rock band Blondie. It was released on September 23, 1978, by Chrysalis Records to international commercial success. The album reached No. 1 in the United Kingdom in February 1979 and proved to be the band's commercial breakthrough in the United States, where it reached No. 6 in April 1979. In "Billboard" magazine, "Parallel Lines" was listed at No. 9 in the top pop albums year-end chart of 1979. As of 2008, the album had sold over 20 million copies worldwide. The album spawned several successful singles, notably the international