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Motorcycle Armor
Motorcycle armor is body armor for motorcycle riders. It comes in a variety of forms, from traditional yellow foam to high-tech compounds capable of absorbing large amounts of energy. In its basic form an armored jacket will include shoulder and Elbow-joint, elbow armor, and many jackets can have an optional back protector added too. Trousers should include hip and knee protection, and sometimes a coccyx protector too. Helmets are seen as the most important piece of armor a rider can wear. It protects the head which is vital. Motorcycle helmet, Helmets have multiple styles of wear for different actives and/or preferences of the rider themselves. Helmets are made in three layers which is a shell, a foam layer, and a foam padding. Shells are usually made from Thermoplastic, Fiberglass, or Carbon composite materials all with the goal the best protection and the attempt of not being too heavy. Another piece of typical motorcycle armor is Glove, gloves. Gloves protect the hands of the rid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Body Armor
Body armour, personal armour (also spelled ''armor''), armoured suit (''armored'') or coat of armour, among others, is armour for human body, a person's body: protective clothing or close-fitting hands-free shields designed to absorb or deflect physical attacks. Historically used to protect military personnel, today it is also used by various types of police (riot police in particular), private security guards, or bodyguards, and occasionally ordinary citizens. Today there are two main types: regular non-plated body armor for moderate to substantial protection, and hard-plate reinforced body armor for maximum protection, such as used by combatants. History Many factors have affected the development of personal armor throughout human history. Significant factors in the development of armor include the economic and technological necessities of armor production. For instance full plate armor first appeared in medieval Europe when water-powered trip hammers made the formation o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plastic
Plastics are a wide range of synthetic polymers, synthetic or Semisynthesis, semisynthetic materials composed primarily of Polymer, polymers. Their defining characteristic, Plasticity (physics), plasticity, allows them to be Injection moulding, molded, Extrusion, extruded, or Compression molding, pressed into a diverse range of solid forms. This adaptability, combined with a wide range of other properties such as low weight, durability, flexibility, chemical resistance, low toxicity, and low-cost production, has led to their widespread use around the world. While most plastics are produced from natural gas and petroleum, a growing minority are produced from renewable resources like polylactic acid. Between 1950 and 2017, 9.2 billion metric tons of plastic are estimated to have been made, with more than half of this amount being produced since 2004. In 2023 alone, preliminary figures indicate that over 400 million metric tons of plastic were produced worldwide. If global trends ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorcycle Airbag
The air bag vest is a personal safety device worn by some motorcyclists and horse riders. Airbag vests initially found popularity among equestrian competitors, and airbags have become mandatory in professional motorcycle racing. In 2018, it became compulsory across all classes within the FIM MotoGP World Championship for riders’ race suits to be fitted with airbag systems. In horse riding, the device is worn over a standard padded vest and is automatically inflated by gas released from a carbon dioxide canister when a tether attached to the horse's saddle is extended during a fall. While early motorcycle vests followed this approach, the technology has advanced: modern systems use a set of onboard sensors (accelerometer, gyroscope and GPS) that analyze the motorcyclist's movements . An onboard computer uses this sensor data to predict the start of a crash and inflate the airbag before the rider hits the ground or a hard object. Germany's ADAC tested these systems and found that t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spinal Column
The spinal column, also known as the vertebral column, spine or backbone, is the core part of the axial skeleton in vertebrates. The vertebral column is the defining and eponymous characteristic of the vertebrate. The spinal column is a segmented column of vertebrae that surrounds and protects the spinal cord. The vertebrae are separated by intervertebral discs in a series of cartilaginous joints. The dorsal portion of the spinal column houses the spinal canal, an elongated cavity formed by the alignment of the vertebral neural arches that encloses and protects the spinal cord, with spinal nerves exiting via the intervertebral foramina to innervate each body segment. There are around 50,000 species of animals that have a vertebral column. The human spine is one of the most-studied examples, as the general structure of human vertebrae is fairly typical of that found in other mammals, reptiles, and birds. The shape of the vertebral body does, however, vary somewhat b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambridge University
The University of Cambridge is a Public university, public collegiate university, collegiate research university in Cambridge, England. Founded in 1209, the University of Cambridge is the List of oldest universities in continuous operation, world's third-oldest university in continuous operation. The university's founding followed the arrival of scholars who left the University of Oxford for Cambridge after a dispute with local townspeople. The two ancient university, ancient English universities, although sometimes described as rivals, share many common features and are often jointly referred to as Oxbridge. In 1231, 22 years after its founding, the university was recognised with a royal charter, granted by Henry III of England, King Henry III. The University of Cambridge includes colleges of the University of Cambridge, 31 semi-autonomous constituent colleges and List of institutions of the University of Cambridge#Schools, Faculties, and Departments, over 150 academic departm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Europe
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east. Europe shares the landmass of Eurasia with Asia, and of Afro-Eurasia with both Africa and Asia. Europe is commonly considered to be Boundaries between the continents#Asia and Europe, separated from Asia by the Drainage divide, watershed of the Ural Mountains, the Ural (river), Ural River, the Caspian Sea, the Greater Caucasus, the Black Sea, and the waterway of the Bosporus, Bosporus Strait. "Europe" (pp. 68–69); "Asia" (pp. 90–91): "A commonly accepted division between Asia and Europe ... is formed by the Ural Mountains, Ural River, Caspian Sea, Caucasus Mountains, and the Black Sea with its outlets, the Bosporus and Dardanelles." Europe covers approx. , or 2% of Earth#Surface, Earth's surface (6.8% of Earth's land area), making it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerostich
Aero Design & Mfg. Co., doing business as Aerostich Riderwear, is a company based in Duluth, Minnesota that produces and sells motorcycle safety clothing and other motorcycle related equipment, such as GPS systems, luggage, and hand tools. It was founded in 1983 by Andy Goldfine, who is also the founder of the nonprofit Ride To Work, Inc. and was elected to a third three-year term as an American Motorcyclist Association board member in 2008. They are best known for the textile protective clothing they create, including the one-piece Roadcrafter suit and Darien jacket. Some track day organizations, such as NESBA, allow riders to use textile suits such as the Aerostich instead of full racing leathers. The company was founded to produce a new recipe for armored all-weather protective clothing, combining these components for the first time: lightweight highly abrasion-resistant Cordura® nylon, breathable-waterproof Gore-Tex Gore-Tex is W. L. Gore & Associates's trade name f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viscoelasticity
In materials science and continuum mechanics, viscoelasticity is the property of materials that exhibit both viscous and elastic characteristics when undergoing deformation. Viscous materials, like water, resist both shear flow and strain linearly with time when a stress is applied. Elastic materials strain when stretched and immediately return to their original state once the stress is removed. Viscoelastic materials have elements of both of these properties and, as such, exhibit time-dependent strain. Whereas elasticity is usually the result of bond stretching along crystallographic planes in an ordered solid, viscosity is the result of the diffusion of atoms or molecules inside an amorphous material.Meyers and Chawla (1999): "Mechanical Behavior of Materials", 98-103. Background In the nineteenth century, physicists such as James Clerk Maxwell, Ludwig Boltzmann, and Lord Kelvin researched and experimented with creep and recovery of glasses, metals, and rubbers. Viscoel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
