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
Will He Round the Point? the tip of the Skagen Odde peninsula where ships were frequently stranded. As in many of Ancher's pictures of fishermen, the work includes figures pointing or indicating alarm, urging the observer to imagine what is attracting their attention. The painting is just one of Ancher's many large paintings of Skagen's fishermen, the last being painted in 1896 which pays tribute to the heroic Lars Kruse who drowned in 1894. The original painting is still in the royal collection. There are three known versions, one of which is in Skagens Museum. Will He Round the Point? Will He Round the Point?