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Amsterdammertje (paaltje)
An ''Amsterdammertje'' () is the typical red-brown steel traffic bollard that is used to separate the pavement from the street in Amsterdam. ''Amsterdammertje'' is Dutch for 'little one from Amsterdam'. The bollards bear the three Saint Andrew's Crosses from the coat of arms of Amsterdam. Since the 1980s, the city council has been removing and selling ''Amsterdammertjes''. __TOC__ History Around 1800, many people in Amsterdam started to use bollards to protect the pavement in front of their houses. These bollards were made of metal (originally old cannons, see also Bollards), stone, or wood. In the late 19th century the first cast iron bollards were made. From 1915 onwards there was a standard bollard of cast iron, weighing , with three Saint Andrew's Crosses from the coat of arms of Amsterdam. This bollard already looked like the modern ''Amsterdammertje'', although, amongst other differences, it was thinner and heavier. From 1972 the ''Amsterdammertjes'' were no longer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amsterdammertje
An ''Amsterdammertje'' () is the typical red-brown steel traffic bollard that is used to separate the pavement from the street in Amsterdam. ''Amsterdammertje'' is Dutch for 'little one from Amsterdam'. The bollards bear the three Saint Andrew's Crosses from the coat of arms of Amsterdam. Since the 1980s, the city council has been removing and selling ''Amsterdammertjes''. __TOC__ History Around 1800, many people in Amsterdam started to use bollards to protect the pavement in front of their houses. These bollards were made of metal (originally old cannons, see also Bollards), stone, or wood. In the late 19th century the first cast iron bollards were made. From 1915 onwards there was a standard bollard of cast iron, weighing , with three Saint Andrew's Crosses from the coat of arms of Amsterdam. This bollard already looked like the modern ''Amsterdammertje'', although, amongst other differences, it was thinner and heavier. From 1972 the ''Amsterdammertjes'' were no longer mad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cannon
A cannon is a large- caliber gun classified as a type of artillery, which usually launches a projectile using explosive chemical propellant. Gunpowder ("black powder") was the primary propellant before the invention of smokeless powder during the late 19th century. Cannons vary in gauge, effective range, mobility, rate of fire, angle of fire and firepower; different forms of cannon combine and balance these attributes in varying degrees, depending on their intended use on the battlefield. A cannon is a type of heavy artillery weapon. The word ''cannon'' is derived from several languages, in which the original definition can usually be translated as ''tube'', ''cane'', or ''reed''. In the modern era, the term ''cannon'' has fallen into decline, replaced by ''guns'' or ''artillery'', if not a more specific term such as howitzer or mortar, except for high-caliber automatic weapons firing bigger rounds than machine guns, called autocannons. The earliest known depict ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transport In Amsterdam
Transportation within the city of Amsterdam is characterised by bicycles and public transportation. Large freeways only exist around the city, terminating at the A10 Ringroad. Navigating by car through the city centre is discouraged, with the government sponsoring initiatives to reduce car usage. Local Bicycle Amsterdam is known as one of the most bicycle-friendly cities in the world and is a centre of bicycle culture. 38% of all journeys in the city are made by bicycle. Most main streets have bike paths. Bike racks are ubiquitous throughout the city. There are about 1,000,000 bicycles in the city. Each year, about 100,000 of them are stolen and 25,000 end up in the canals. Boat Amsterdam has a large collection of canals. In total over 150 of these waterways crisscross the city and its surroundings, dividing the city of Amsterdam into approximately 90 mini islands. This network of islands is joined together by a vast number of bridges, totaling over 1,000. For many centuries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Amsterdam
Amsterdam has a long and eventful history. The origins of the city lie in the 12th century, when fishermen living along the banks of the River Amstel built a bridge across the waterway near the IJ, which at the time was a large saltwater inlet. Wooden locks under the bridge served as a dam protecting the village from the rising IJ waters, which often flooded the early settlement. The mouth of the river Amstel, where the Damrak is now, formed a natural harbor, which became important for trading-exchange from the larger koggeships into the smaller ships that sailed the merchandise deeper into the hinterland. The oldest document referring to the settlement of "Aemstelredamme" (Amsterdam) 'dam in the river Amstel' comes from a document dated 27 October 1275 CE. Inhabitants of the village were, by this document, exempted from paying a bridge toll in the County of Holland by Count Floris V. Excavations between 2005 and 2012 found evidence that the origins of Amsterdam are much ol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Culture In Amsterdam
Culture () is an umbrella term which encompasses the social behavior, institutions, and norms found in human societies, as well as the knowledge, beliefs, arts, laws, customs, capabilities, and habits of the individuals in these groups.Tylor, Edward. (1871). Primitive Culture. Vol 1. New York: J.P. Putnam's Son Culture is often originated from or attributed to a specific region or location. Humans acquire culture through the learning processes of enculturation and socialization, which is shown by the diversity of cultures across societies. A cultural norm codifies acceptable conduct in society; it serves as a guideline for behavior, dress, language, and demeanor in a situation, which serves as a template for expectations in a social group. Accepting only a monoculture in a social group can bear risks, just as a single species can wither in the face of environmental change, for lack of functional responses to the change. Thus in military culture, valor is counted a typical be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traffic Cone
Traffic cones, also called pylons, witches' hats, road cones, highway cones, safety cones, channelizing devices, construction cones, or just cones, are usually cone-shaped markers that are placed on roads or footpaths to temporarily redirect traffic in a safe manner. They are often used to create separation or merge lanes during road construction projects or automobile accidents, although heavier, more permanent markers or signs are used if the diversion is to stay in place for a long period of time. History Traffic cones were invented by Charles D. Scanlon, an American who, while working as a painter for the Street Painting Department of the City of Los Angeles, was unimpressed with the traditional wooden tripods and barriers used to mark roads which were damaged or undergoing repainting. Scanlon regarded these wooden structures as easily broken, hard to see, and a hazard to passing traffic. Scanlon's rubber cone was designed to return to an upright position when struck by a gl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Truck
A truck or lorry is a motor vehicle designed to transport cargo, carry specialized payloads, or perform other utilitarian work. Trucks vary greatly in size, power, and configuration, but the vast majority feature body-on-frame construction, with a cabin that is independent of the payload portion of the vehicle. Smaller varieties may be mechanically similar to some automobiles. Commercial trucks can be very large and powerful and may be configured to be mounted with specialized equipment, such as in the case of refuse trucks, fire trucks, concrete mixers, and suction excavators. In American English, a commercial vehicle without a trailer or other articulation is formally a "straight truck" while one designed specifically to pull a trailer is not a truck but a "Tractor unit, tractor". The majority of trucks currently in use are still powered by diesel engines, although small- to medium-size trucks with gasoline engines exist in the US, Canada, and Mexico. The market-share of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cast Iron
Cast iron is a class of iron–carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impurities which allow cracks to pass straight through, grey cast iron has graphite flakes which deflect a passing crack and initiate countless new cracks as the material breaks, and ductile cast iron has spherical graphite "nodules" which stop the crack from further progressing. Carbon (C), ranging from 1.8 to 4 wt%, and silicon (Si), 1–3 wt%, are the main alloying elements of cast iron. Iron alloys with lower carbon content are known as steel. Cast iron tends to be brittle, except for malleable cast irons. With its relatively low melting point, good fluidity, castability, excellent machinability, resistance to deformation and wear resistance, cast irons have become an engineering material with a wide range of applications and are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood
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 productio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock (geology)
In geology, rock (or stone) is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition, and the way in which it is formed. Rocks form the Earth's outer solid layer, the crust, and most of its interior, except for the liquid outer core and pockets of magma in the asthenosphere. The study of rocks involves multiple subdisciplines of geology, including petrology and mineralogy. It may be limited to rocks found on Earth, or it may include planetary geology that studies the rocks of other celestial objects. Rocks are usually grouped into three main groups: igneous rocks, sedimentary rocks and metamorphic rocks. Igneous rocks are formed when magma cools in the Earth's crust, or lava cools on the ground surface or the seabed. Sedimentary rocks are formed by diagenesis and lithification of sediments, which in turn are formed by the weathering, transport, and deposition of existing ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bollards
A bollard is a sturdy, short, vertical post. The term originally referred to a post on a ship or quay used principally for mooring boats. It now also refers to posts installed to control road traffic and posts designed to prevent automotive vehicles from colliding or crashing into pedestrians and structures, whether intentional from ram-raids and vehicle-ramming attacks, or unintentional losses of control. Etymology The term is probably related to bole, meaning a tree trunk. The earliest citation given by the ''Oxford English Dictionary'' (referring to a maritime bollard) dates from 1844, although a reference in the ''Caledonian Mercury'' in 1817 describes bollards as huge posts. History Wooden posts were used for basic traffic management from at least the beginning of the 18th century. An early well-documented case is that of the "two oak-posts" set up next to the medieval Eleanor cross at Waltham Cross, Hertfordshire, in 1721, at the expense of the Society of Antiqua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metal
A metal (from Greek μέταλλον ''métallon'', "mine, quarry, metal") is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typically ductile (can be drawn into wires) and malleable (they can be hammered into thin sheets). These properties are the result of the ''metallic bond'' between the atoms or molecules of the metal. A metal may be a chemical element such as iron; an alloy such as stainless steel; or a molecular compound such as polymeric sulfur nitride. In physics, a metal is generally regarded as any substance capable of conducting electricity at a temperature of absolute zero. Many elements and compounds that are not normally classified as metals become metallic under high pressures. For example, the nonmetal iodine gradually becomes a metal at a pressure of between 40 and 170 thousand times atmospheric pressure. Equally, some materials regarded as metals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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