|
Fore-edge Painting
A fore-edge painting is a scene painted on the edges of book pages. There are two basic forms, including paintings on fanned edges and closed edges. For the first type, the book's leaves must be fanned, exposing the pages' edges for the picture to become visible. For the second closed type, the image is visible only while the book is closed. The fundamental difference between the two fore-edge styles is that a painting on the closed edge is painted directly on the book's surface (the fore-edge being the opposite of the spine side). In contrast, the fanned fore-edge style has watercolor applied to the top or bottom margin (recto or verso) of the page/leaf and not to the actual "fore"-edge itself. To begin a fore-edge painting artists clamped the slightly fanned pages of a book between the boards of a special press that held them in place while keeping pressure off of the cover boards. While the paints used for fore-edge paintings are watercolors, artists needed to use them carefu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arch Of Traianus, Ancona - Tasso In Prison; - The Bridge Of Sighs
An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it. Arches may be synonymous with vaults, but a vault may be distinguished as a continuous arch forming a roof. Arches appeared as early as the 2nd millennium BC in Mesopotamian brick architecture, and their systematic use started with the ancient Romans, who were the first to apply the technique to a wide range of structures. Basic concepts An arch is a pure compression form. It can span a large area by resolving forces into compressive stresses, and thereby eliminating tensile stresses. This is sometimes denominated "arch action". As the forces in the arch are transferred to its base, the arch pushes outward at its base, denominated "thrust". As the rise, i. e. height, of the arch decreases the outward thrust increases. In order to preserve arch action and prevent collapse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
