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Portable Bicycle
A portable bicycle is a bicycle that has been designed to be small and light enough for easy carrying. It is usually dismantled to make a convenient bundle and the frame often has a folding action to facilitate this. The design of a portable bicycle involves a trade-off between ease of carrying and ease of riding. History The first popular bicycles were the large penny-farthings. The pioneering inventor, W. H. J. Grout of Stoke Newington, invented a portable version in which the large front wheel could be dismantled into four pieces so that they would fit into a carrying bag. In the 1890s, Captain Gérard of the 87th Regiment of French Infantry was an advocate of bicycles for military use. To enable his troops to operate in rough terrain, he devised a bicycle which could be folded in two and carried on the soldiers' backs; the weight was between 10-12 kg (22-26¼ lbs). The first time the Gérard portable bicycle was used, it "gave complete satisfaction and justified all ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cobblestone
Cobblestone is a natural building material based on Cobble (geology), cobble-sized stones, and is used for Road surface, pavement roads, streets, and buildings. Sett (paving), Setts, also called ''Belgian blocks'', are often referred to as "cobbles", although a sett is distinct from a cobblestone by being quarried and shaped into a regular form, while cobblestones are naturally occurring rounded forms less uniform in size. It has been used across various cultures for millennia, particularly in Europe, and became especially prominent during the medieval and early modern periods. Today, cobblestone streets are often associated with historic preservation and are used in many cities to maintain the historical character of certain neighborhoods. History as road surface During the Middle Ages, medieval period, cobblestone streets became common in many European towns and cities. Cobblestones were readily available, as they were often naturally occurring stones found in riverbeds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Transportation
Public transport (also known as public transit, mass transit, or simply transit) are forms of transport available to the general public. It typically uses a fixed schedule, route and charges a fixed fare. There is no rigid definition of which kinds of transport are included, and air travel is often not thought of when discussing public transport—dictionaries use wording like "buses, trains, etc." Examples of public transport include city buses, trolleybuses, trams (or light rail) and passenger trains, rapid transit (metro/subway/underground, etc.) and ferries. Public transport between cities is dominated by airlines, coaches, and intercity rail. High-speed rail networks are being developed in many parts of the world. Most public transport systems run along fixed routes with set embarkation/disembarkation points to a prearranged timetable, with the most frequent services running to a headway (e.g., "every 15 minutes" as opposed to being scheduled for a specific time of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exhaust Gas
Exhaust gas or flue gas is emitted as a result of the combustion of fuels such as natural gas, gasoline (petrol), diesel fuel, fuel oil, biodiesel blends, or coal. According to the type of engine, it is discharged into the atmosphere through an exhaust pipe, flue gas stack, or propelling nozzle. It often disperses downwind in a pattern called an ''exhaust plume''. It is a major component of motor vehicle emissions (and from stationary internal combustion engines), which can also include crankcase blow-by and evaporation of unused gasoline. Air pollution from burning fossil fuels is estimated to kill over 5 million people each year. Motor vehicle emissions are a common source of air pollution and are a major ingredient in the creation of smog in some large cities. Composition The largest part of most combustion gas is nitrogen (N2), water vapor (H2O) (except with pure-carbon fuels), and carbon dioxide (CO2) (except for fuels without carbon); these are not toxic or noxiou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil Fuel
A fossil fuel is a flammable carbon compound- or hydrocarbon-containing material formed naturally in the Earth's crust from the buried remains of prehistoric organisms (animals, plants or microplanktons), a process that occurs within geological formations. Reservoirs of such compound mixtures, such as coal, petroleum and natural gas, can be extracted and burnt as fuel for human consumption to provide energy for direct use (such as for cooking, heating or lighting), to power heat engines (such as steam or internal combustion engines) that can propel vehicles, or to generate electricity via steam turbine generators. Some fossil fuels are further refined into derivatives such as kerosene, gasoline and diesel, or converted into petrochemicals such as polyolefins ( plastics), aromatics and synthetic resins. The origin of fossil fuels is the anaerobic decomposition of buried dead organisms. The conversion from these organic materials to high-carbon fossil fuels is ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pit Bike
A pit bike is a small motorcycle, used primarily for recreational purposes, stunt riding and motocross racing. Pit bikes are characterised by small, air-cooled engines, and are rarely used for professional racing, instead being intended for use in the pit lanes of racing events. History Invention The pit bike evolved from custom-built motorized bikes that began appearing in the pit lanes of post-war 1940s and 1950s racing events. Initially, the term also applied to the use of bicycles or motorcycles used to navigate event staging areas. These hand-built machines were directly responsible for the creation of the minibike market. The fairly cheap price and the mobility of minibikes made them easy to use and popular at racing events. As the minibike market boomed in the 1960s, Honda introduced the Z series, which became a popular choice to fill this role. With the popularity of off-road motorcycles increasing through the 1980s, the production of inexpensive, introductory-mode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Transport
Public transport (also known as public transit, mass transit, or simply transit) are forms of transport available to the general public. It typically uses a fixed schedule, route and charges a fixed fare. There is no rigid definition of which kinds of transport are included, and air travel is often not thought of when discussing public transport—dictionaries use wording like "buses, trains, etc." Examples of public transport include Public transport bus service, city buses, trolleybuses, trams (or light rail) and Passenger rail transport, passenger trains, rapid transit (metro/subway/underground, etc.) and ferry, ferries. Public transport between cities is dominated by airlines, intercity bus service, coaches, and intercity rail. High-speed rail networks are being developed in many parts of the world. Most public transport systems run along fixed routes with set embarkation/disembarkation points to a prearranged timetable, with the most frequent services running to a headwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subway (rail)
Rapid transit or mass rapid transit (MRT) or heavy rail, commonly referred to as metro, is a type of high-capacity public transport that is generally built in urban areas. A grade separated rapid transit line below ground surface through a tunnel can be regionally called a subway, tube, metro or underground. They are sometimes grade-separated on elevated railways, in which case some are referred to as el trains – short for "elevated" – or skytrains. Rapid transit systems are usually electric railways, that unlike buses or trams operate on an exclusive right-of-way, which cannot be accessed by pedestrians or other vehicles. Modern services on rapid transit systems are provided on designated lines between stations typically using electric multiple units on railway tracks. Some systems use guided rubber tires, magnetic levitation (''maglev''), or monorail. The stations typically have high platforms, without steps inside the trains, requiring custom-made trains in order to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parking Lot
A parking lot or car park (British English), also known as a car lot, is a cleared area intended for parking vehicles. The term usually refers to an area dedicated only for parking, with a durable or semi-durable surface. In most jurisdictions where cars are the dominant mode of transportation, parking lots are a major feature of cities and suburban areas. Shopping malls, sports stadiums, and other similar venues often have immense parking lots. (See also: multistorey car park) Parking lots tend to be sources of water pollution because of their extensive impervious surfaces, and because most have limited or no facilities to control runoff. Many areas today also require minimum landscaping in parking lots to provide shade and help mitigate the extent to which their paved surfaces contribute to heat islands. Many municipalities require a minimum numbers of parking spaces for buildings such as stores (by floor area) and apartment complexes (by number of bedrooms). In th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Last Mile (transportation)
In supply chain management and transportation planning, the last mile or last kilometer is the last leg of a journey comprising the movement of passengers and goods from a transportation hub to a final destination. The concept of "last mile" was adopted from the telecommunications industry, which faced difficulty connecting individual homes to the main telecommunications network. Similarly, in supply chain management, the last mile describes the logistical challenges at the last phase of transportation getting people and packages from hubs to their final destinations. Last-mile delivery is an increasingly studied field as the number of business-to-consumer (b2c) deliveries grow, especially from e-commerce companies in freight transportation, and ride-sharing companies in personal transportation. Some challenges of last-mile delivery include minimizing cost, ensuring transparency, increasing efficiency, and improving infrastructure. History "Last mile" was originally use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Cycles
Pacific Cycles is a Taiwan, Taiwanese bicycle designing and manufacturing company headquartered in Xinwu District, Taoyuan, Xinwu District, Taoyuan, Taiwan, Taoyuan City. The company manufactures its self-designed cycles including Folding bicycle, folding bicycles, Electric bicycle, electric bicycles, Tricycle, tricycles and other supportive cycles. It has an in-house research and development studio known as "Section Zero" for new product development and also provides Original design manufacturer, original design manufacturing services for over 40 bicycle brands and Original equipment manufacturer, original equipment manufacturers worldwide from this facility. The company has a bicycle museum in Taoyuan City known as "Pacific Cycles Museum". History and overview Pacific Cycles was established in 1980 by George Lin, a Taiwanese people, Taiwanese entrepreneur. Lin started his career as an English teacher in 1972. He established the company as an Original design manufacturer, ODM ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brompton Bicycle
Brompton Bicycle Limited, trading as Brompton, is a British manufacturer of folding bicycles based in Greenford, London. The Brompton folding bicycle and accessories are the company's core product, noted for its self-supporting compact size when stored. All available models of the folding bicycle are based on the same hinged frame and ETRTO 35-349 mm (16-inch) tyre size. Components are added, removed, or replaced by titanium parts to form the many variations. The modular design has remained fundamentally unchanged since the original patent was filed by Andrew Ritchie in 1979, with small details being refined by continual improvement. Ritchie was awarded the 2009 Prince Philip Designers Prize for work on the bicycle. Brompton is the largest volume bicycle manufacturer in Britain, producing approximately 50,000 bicycles each year. The company's bicycles are also available for hire. Design All Brompton folding bicycle models share the same curved frame, consisti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
