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Bicycle Safety Wing
A bicycle safety wing is an arm attached to the side of a bicycle. Its purpose is to keep other vehicles from passing too closely. It is usually made of brightly colored plastic, and ends with a retroreflector. Legality French law allows for bicycle safety wings up to 40 centimetres. See also * Bicycle-friendly * Bicycle helmet laws by country * Bicycle safety * Outline of cycling * Safety in numbers Safety in numbers is the hypothesis that, by being part of a large physical group or mass, an individual is less likely to be the victim of a mishap, accident, attack, or other bad event. Some related theories also argue (and can show statistica ... * Vehicular cycling References {{Cycling Cycling safety ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle Demonstration With Pool Noodles
A bicycle, also called a pedal cycle, bike or cycle, is a human-powered or motor-powered assisted, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A is called a cyclist, or bicyclist. Bicycles were introduced in the 19th century in Europe. By the early 21st century, more than 1 billion were in existence. These numbers far exceed the number of cars, both in total and ranked by the number of individual models produced. They are the principal means of transportation in many regions. They also provide a popular form of recreation, and have been adapted for use as children's toys, general fitness, military and police applications, courier services, bicycle racing, and bicycle stunts. The basic shape and configuration of a typical upright or "safety bicycle", has changed little since the first chain-driven model was developed around 1885. However, many details have been improved, especially since the advent of modern m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle
A bicycle, also called a pedal cycle, bike or cycle, is a human-powered or motor-powered assisted, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A is called a cyclist, or bicyclist. Bicycles were introduced in the 19th century in Europe. By the early 21st century, more than 1 billion were in existence. These numbers far exceed the number of cars, both in total and ranked by the number of individual models produced. They are the principal means of transportation in many regions. They also provide a popular form of recreation, and have been adapted for use as children's toys, general fitness, military and police applications, courier services, bicycle racing, and bicycle stunts. The basic shape and configuration of a typical upright or "safety bicycle", has changed little since the first chain-driven model was developed around 1885. However, many details have been improved, especially since the advent of modern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retroreflector
A retroreflector (sometimes called a retroflector or cataphote) is a device or surface that reflects radiation (usually light) back to its source with minimum scattering. This works at a wide range of angle of incidence, unlike a planar mirror, which does this only if the mirror is exactly perpendicular to the wave front, having a zero angle of incidence. Being directed, the retroflector's reflection is brighter than that of a diffuse reflector. Corner reflectors and cat's eye reflectors are the most used kinds. Types There are several ways to obtain retroreflection: Corner reflector A set of three mutually perpendicular reflective surfaces, placed to form the internal corner of a cube, work as a retroreflector. The three corresponding normal vectors of the corner's sides form a basis in which to represent the direction of an arbitrary incoming ray, . When the ray reflects from the first side, say x, the ray's ''x''-component, ''a'', is reversed to −''a'', while the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle-friendly
Bicycle-friendly policies and practices help some people feel more comfortable about traveling by bicycle with other traffic. The level of bicycle-friendliness of an environment can be influenced by many factors including town planning and cycling infrastructure decisions. A stigma towards people who ride bicycles and fear of cycling is a social construct that needs to be fully understood when promoting a bicycle friendly culture. Urban planning Assuming people prefer to get to their destination quickly, urban planning and zoning may affect whether schools, shops, public transport interchanges and other destination are within a reasonable cycling distance of the areas where people live. If urban form influences these issues, then compact and circular settlement patterns as in Elizabeth, NJ may promote cycling. Alternatively, the low-density, non-circular (i.e., linear) settlement patterns characteristic of urban sprawl as in nearby downtown Newark tends to discourage cycling. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle Helmet Laws By Country
The wearing of bicycle helmets and attitudes towards their use vary around the world. Compulsory use of helmets has often been discussed, and is disputed (see Bicycle helmet laws). Only the four countries of Argentina, Cyprus, Australia, and New Zealand currently both require and enforce universal use of helmets by cyclists. In some other jurisdictions partial rules apply, such as only for children (e.g. in France), in certain states or sub-national divisions (e.g. British Columbia in Canada), or under other limited conditions. Denmark and the Netherlands, while two of the countries with the strongest cycling culture, do not compel and have some of the lowest levels of helmet use. Legislation by country Australia was the first country to enact mandatory bicycle helmet use for all cyclists.Curnow, W. J. "Bicycle Helmets: A Scientific Evaluation" in Mexico City has had mandatory cycle helmet laws repealed, and in Italy the Federazione Italiana Amici della Bicicletta managed to blo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle Safety
Bicycle safety is the use of road traffic safety practices to reduce risk associated with cycling. Risk can be defined as the number of incidents occurring for a given amount of cycling. Some of this subject matter is hotly debated: for example, which types of cycling environment or cycling infrastructure is safest for cyclists. The merits of obeying the traffic laws and using bicycle lighting at night are less controversial. Wearing a bicycle helmet may reduce the chance of head injury in the event of a crash. Most bicycling fatalities occur as a result of collision with a motor vehicle. Studies in multiple countries have found that drivers are at fault in the majority of these crashes. Crashes The first recorded bicycle crash occurred in 1842, reportedly between Kirkpatrick McMillan, an early rider of the velocipede, and a young girl in Glasgow. The report, however, is vague and the identification disputed. The overall risk of death from a cycling accident in developed co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outline Of Cycling
:''This article is an outline about the activity of cycling. For an outline about bicycles themselves, see outline of bicycles.'' :The following ''outline'' is provided as an overview of, as well as a topical guide to cycling: Cycling, also called bicycling or biking, is the activity of using / riding bicycles, (at least partially) human-powered, wheeled vehicles (typically by foot pedalling), for purposes including transport, recreation, social interaction, exercise, sport, therapy, other purposes, or any combination thereof. Persons engaged in cycling are called cyclists, bikers, or sometimes bicyclists. They typically either dress for where they are going, or for the cycling, sometimes having another set of clothing with them, or arranged. Apart from regular two-wheeled bicycles, cycling also includes riding unicycles, tricycles, quadricycles, and other similar human-powered wheeled vehicles (HPVs). Some bicycles are sold with (electric) motors (e-bikes), or ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Safety In Numbers
Safety in numbers is the hypothesis that, by being part of a large physical group or mass, an individual is less likely to be the victim of a mishap, accident, attack, or other bad event. Some related theories also argue (and can show statistically) that mass behaviour (by becoming more predictable and "known" to other people) can reduce accident risks, such as in traffic safety – in this case, the safety effect creates an actual reduction of danger, rather than just a redistribution over a larger group. In biology The mathematical biologist W.D. Hamilton proposed his selfish herd theory in 1971 to explain why animals seek central positions in a group. Each individual can reduce its own domain of danger by situating itself with neighbours all around, so it moves towards the centre of the group. The effect was tested in brown fur seal predation by great white sharks. Using decoy seals, the distance between decoys was varied to produce different domains of danger. The seals wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vehicular Cycling
Vehicular cycling (also known as bicycle driving) is the practice of riding bicycles on roads in a manner that is in accordance with the principles for driving in traffic, and in a way that places responsibility for safety on the individual. The phrase ''vehicular cycling'' was coined by John Forester in the 1970s. In his book '' Effective Cycling'', Forester contends that "Cyclists fare best when they act and are treated as drivers of vehicles". These techniques have been adopted by the League of American Bicyclists and other organizations teaching safe riding courses for cyclists. As a method for strong and confident riders to cope with fast motor traffic, many recommendations of vehicular cycling are widely applied. Vehicular cycling has at times been controversial, particularly on larger roads not designed for bikes. Technique A vehicular cyclist is one that travels within the roadway in accordance with the basic vehicular rules of the road that are shared by all drivers an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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