The artist M.C. Escher was the first artist to create patterns in the hyperbolic plane. He used both the Poincaré disk model and the Poincaré half-plane model of hyperbolic geometry. We discuss some of the theory of hyperbolic patterns and show Escher-inspired designs in both of these models.

abstraction shigeo fokuada is one of the geniuses of contemporary graphic designers of japan. he was born in tokyo in 1932. after finishing his studies in national university of fine arts & music (1956), he worked in many fields of professional graphic design and his poster designs gained world reputation. he as a representative of avant-garde graphic design, with increasing international atten...

what is imagination and image? how is a mental picture formed? how does the product of imagination appear as an artistic or literary from? what are the factors that cause man to prefer the world of imagination over reality, making it, his/her choice and becoming an artist or a writer? these were the questions that made jean-paul sartre busy between 1920 to 1940, and after that he was thinking a...

“Beauty, however, in its general aspect, is the inseparable characteristic of the idea when it has become known. In other words, everything is beautiful in which an idea is revealed; for to be beautiful means no more than clearly to express an idea.” — Schopenhauer (2004-eBook edition) “In the last analysis, the artist may shout from all the rooftops that he is a genius: he will have to wait fo...

This paper studies the operating characteristics of an MX/Hk/1 queueing system under multiple vacation policy. It is assumed that the server goes for vacation as soon as the system becomes empty. When he returns from a vacation and there is one or more customers waiting in the queue, he serves these customers until the system becomes empty again, otherwise goes for another vacation. The brea...

he Sun will not rise, or set, without my notice, and thanks, " wrote Winslow Homer to his brother Charles, putting into words what drove his art (1). All his life, the artist " noticed " —not just the rising and setting sun from his home near the ocean at Prouts Neck, Maine, but everything around him: people; scenery of his hunting and fishing trips; wildlife, which he painted with passion; obj...

youssef ismael – iraqi great artist – is one of the nobles in playwriting either in writing or in criticism. al – aani has enjoyed beresht’s theories and ideas while his idea were based on political requirements which was dominant in that era; he wanted to choose a frame for playwriting which considered all types of people of the society. the present article which is analytical – descriptive, s...