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Tusk Tenon
A mortise and tenon (occasionally mortice and tenon) joint connects two pieces of wood or other material. Woodworkers around the world have used it for thousands of years to join pieces of wood, mainly when the adjoining pieces connect at right angles. Mortise and tenon joints are strong and stable joints that can be used in many projects. They furnish a strong outcome and connect by either gluing or locking into place. The mortise and tenon joint also gives an attractive look. One drawback to this joint is the difficulty in making it because of the precise measuring and tight cutting required. In its most basic form, a mortise and tenon joint is both simple and strong. There are many variations of this type of joint, and the basic mortise and tenon has two components: #the mortise hole, and #the tenon tongue. The tenon, formed on the end of a member generally referred to as a rail, fits into a square or rectangular hole cut into the other, corresponding member. The tenon is cu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mortise And Tenon Joint
Mortise or mortice may refer to: * Mortise and tenon, a woodworking joint * Ankle mortise, part of the distal tibia joining the talus bone to form an ankle joint * Mortise chisel, a type of chisel A chisel is a tool with a characteristically shaped cutting edge (such that wood chisels have lent part of their name to a particular grind) of blade on its end, for carving or cutting a hard material such as wood, stone, or metal by hand, stru ... * Mortice lock, a lock with a bolt set within the door frame, rather than attached externally {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fourth Dynasty Of Egypt
The Fourth Dynasty of ancient Egypt (notated Dynasty IV) is characterized as a "golden age" of the Old Kingdom of Egypt. Dynasty IV lasted from to 2494 BC. It was a time of peace and prosperity as well as one during which trade with other countries is documented. The Fourth Dynasty heralded the height of the pyramid-building age. The relative peace of the Third Dynasty allowed the Dynasty IV rulers the leisure to explore more artistic and cultural pursuits. King Sneferu's building experiments led to the evolution from the mastaba-styled step pyramids to the smooth sided “true” pyramids, such as those on the Giza Plateau. No other period in Egypt's history equaled Dynasty IV's architectural accomplishments.Egypt: Land and Lives of the Pharaohs Revealed, (2005), pp. 80–90, Global Book Publishing: Australia Each of the rulers of this dynasty (except for Shepseskaf, the last) commissioned at least one pyramid to serve as a tomb or cenotaph. The Fourth Dynasty was the sec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wooden Hinge
Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin that resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or it is defined more broadly to include the same type of tissue elsewhere such as in the roots of trees or shrubs. In a living tree it performs a support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients between the leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, or woodchips or fiber. Wood has been used for thousands of years for fuel, as a construction material, for making tools and weapons, furniture and paper. More recently it emerged as a feedstock for the production ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bone Chisel Reconstruction
A bone is a rigid organ that constitutes part of the skeleton in most vertebrate animals. Bones protect the various other organs of the body, produce red and white blood cells, store minerals, provide structure and support for the body, and enable mobility. Bones come in a variety of shapes and sizes and have complex internal and external structures. They are lightweight yet strong and hard and serve multiple functions. Bone tissue (osseous tissue), which is also called bone in the uncountable sense of that word, is hard tissue, a type of specialized connective tissue. It has a honeycomb-like matrix internally, which helps to give the bone rigidity. Bone tissue is made up of different types of bone cells. Osteoblasts and osteocytes are involved in the formation and mineralization of bone; osteoclasts are involved in the resorption of bone tissue. Modified (flattened) osteoblasts become the lining cells that form a protective layer on the bone surface. The mineralized matrix ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sash Corner
A sash is a large and usually colorful ribbon or band of material worn around the body, either draping from one shoulder to the opposing hip and back up, or else running around the waist. The sash around the waist may be worn in daily attire, but the sash from shoulder to hip is worn on ceremonial occasions only. Ceremonial sashes are also found in a V-shaped format, draping straight from both shoulders down, intersecting and forming an angle over the chest or abdomen. Military use Old Europe In the mid- and late-16th century waist and shoulder sashes came up as mark of (high) military rank or to show personal affection to a political party or nation. During the Thirty Years' War the distinctive sash colour of the House of Habsburg was red while their French opponents wore white or blue sashes and the Swedish voted for blue sashes. Beginning from the end of the 17th century, commissioned officers in the British Army wore waist sashes of crimson silk. The original officer's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hull (watercraft)
A hull is the watertight body of a ship, boat, or flying boat. The hull may open at the top (such as a dinghy), or it may be fully or partially covered with a deck. Atop the deck may be a deckhouse and other superstructures, such as a funnel, derrick, or mast. The line where the hull meets the water surface is called the waterline. General features There is a wide variety of hull types that are chosen for suitability for different usages, the hull shape being dependent upon the needs of the design. Shapes range from a nearly perfect box in the case of scow barges to a needle-sharp surface of revolution in the case of a racing multihull sailboat. The shape is chosen to strike a balance between cost, hydrostatic considerations (accommodation, load carrying, and stability), hydrodynamics (speed, power requirements, and motion and behavior in a seaway) and special considerations for the ship's role, such as the rounded bow of an icebreaker or the flat bottom of a landing craft. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shipbuilding
Shipbuilding is the construction of ships and other floating vessels. It normally takes place in a specialized facility known as a shipyard. Shipbuilders, also called shipwrights, follow a specialized occupation that traces its roots to before recorded history. Shipbuilding and ship repairs, both commercial and military, are referred to as "naval engineering". The construction of boats is a similar activity called boat building. The dismantling of ships is called ship breaking. History Pre-history The earliest known depictions (including paintings and models) of shallow-water sailing boats is from the 6th to 5th millennium BC of the Ubaid period of Mesopotamia. They were made from bundled reeds coated in bitumen and had bipod masts. They sailed in shallow coastal waters of the Persian Gulf. 4th millennium BC Ancient Egypt Evidence from Ancient Egypt shows that the early Egyptians knew how to assemble planks of wood into a ship hull as early as 3100 BC. Egyptian potte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loeb Classical Library
The Loeb Classical Library (LCL; named after James Loeb; , ) is a series of books originally published by Heinemann in London, but is currently published by Harvard University Press. The library contains important works of ancient Greek and Latin literature designed to make the text accessible to the broadest possible audience by presenting the original Greek or Latin text on each left-hand page, and a fairly literal translation on the facing page. The General Editor is Jeffrey Henderson, holder of the William Goodwin Aurelio Professorship of Greek Language and Literature at Boston University. History The Loeb Classical Library was conceived and initially funded by the Jewish-German-American banker and philanthropist James Loeb (1867–1933). The first volumes were edited by Thomas Ethelbert Page, W. H. D. Rouse, and Edward Capps, and published by William Heinemann, Ltd. (London) in 1912, already in their distinctive green (for Greek text) and red (for Latin) hardcover bin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phoenician Joints
Phoenician joints () is a locked mortise and tenon wood joinery technique used in shipbuilding to fasten watercraft hulls. The locked (or pegged) mortise and tenon technique consists of cutting a mortise, or socket, into the edges of two planks and fastening them together with a rectangular wooden knob. The assembly is then locked in place by driving a dowel through one or more holes drilled through the mortise side wall and tenon. The Phoenicians pioneered the use of locked mortise and tenon joints in nautical joinery to secure the underwater planking of seagoing ships. The use of pegged mortises and tenons in shipbuilding spread westward from the Levantine littoral. Examples of the use of Phoenician joints in the ancient Mediterranean include the Uluburun ship, dated , and the Cape Gelidonya ship dated to . By the first millennium BC, Phoenician joints became a common edge-to-edge fastening method. Ancient Greek and Roman shipbuilders adopted the technique of Phoenician joi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stonehenge
Stonehenge is a prehistoric monument on Salisbury Plain in Wiltshire, England, west of Amesbury. It consists of an outer ring of vertical sarsen standing stones, each around high, wide, and weighing around 25 tons, topped by connecting horizontal lintel stones. Inside is a ring of smaller bluestones. Inside these are free-standing trilithons, two bulkier vertical sarsens joined by one lintel. The whole monument, now ruinous, is aligned towards the sunrise on the summer solstice. The stones are set within earthworks in the middle of the densest complex of Neolithic and Bronze Age monuments in England, including several hundred ''tumuli'' (burial mounds). Archaeologists believe that Stonehenge was constructed from around 3000 BC to 2000 BC. The surrounding circular earth bank and ditch, which constitute the earliest phase of the monument, have been dated to about 3100 BC. Radiocarbon dating suggests that the first bluestones were raised between 2400 and 2200 BC, althou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Architecture
Chinese architecture (Chinese:中國建築) is the embodiment of an architectural style that has developed over millennia in China and it has influenced architecture throughout Eastern Asia. Since its emergence during the early ancient era, the structural principles of its architecture have remained largely unchanged. The main changes involved diverse decorative details. Starting with the Tang dynasty, Chinese architecture has had a major influence on the architectural styles of Japan, Korea, Mongolia, and Vietnam, and minor influences on the architecture of Southeast and South Asia including the countries of Malaysia, Singapore, Indonesia, Sri Lanka, Thailand, Laos, Cambodia and the Philippines. Chinese architecture is characterized by bilateral symmetry, use of enclosed open spaces, feng shui (e.g. directional hierarchies), a horizontal emphasis, and an allusion to various cosmological, mythological or in general symbolic elements. Chinese architecture traditionally classifies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niya Ruins
The Niya ruins (), is an archaeological site located about north of modern Niya Town on the southern edge of the Tarim Basin in modern-day Xinjiang, China. The ancient site was known in its native language as Caḍ́ota, and in Chinese during the Han Dynasty as Jingjue (, Old Chinese ''tseng-dzot'', similar to ''Caḍ́ota''). Numerous ancient archaeological artifacts have been uncovered at the site. Niya was once a major commercial center on an oasis on the southern branch of the Silk Road in the southern Taklamakan Desert. During ancient times camel caravans would cut through, carrying goods from China to Central Asia. History In ''Hanshu'', an independent oasis state called Jingjue, generally thought to be Niya, is mentioned: Niya became part of Loulan Kingdom by the third century. Towards the end of the fourth century it was under Chinese suzerainty. Later it was conquered by Tibet. Excavations In 1900, Aurel Stein set out on an expedition to western China and the Takl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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