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
The Point! The Point! The Point! is the sixth studio album by American songwriter and musician Harry Nilsson, released in late 1970. It was accompanied by an animated film adaptation directed by Fred Wolf, which aired a few weeks after the album's release in early February 1971 on the ABC-TV network. Its lead single, "Me and My Arrow", peaked at number 34 on the "Billboard" Hot 100. "The Point!" is a fable that tells the story of a boy named Oblio, the only round-headed person in the Pointed Village, where by law everyone and everything must have a point. Nilsson explained his