Boardsports are active outdoor sports that are played with some sort of board as the primary equipment. These sports take place on a variety of terrains, from paved flat-ground and snow-covered hills to water and air. Most boardsports are considered action sports or extreme sports, and thus often appeal to youth. Some board sports were marginalized in the past. However, many board sports are gaining mainstream recognition, and with this recognition, they have enjoyed wider broadcast, sponsorship and inclusion in institutional sporting events, including the Olympic Games.
A tire or tyre is a ring-shaped component that surrounds a wheel's rim to transfer a vehicle's load from the axle through the wheel to the ground and to provide traction on the surface over which the wheel travels. Most tires, such as those for automobiles and bicycles, are pneumatically inflated structures, providing a flexible cushion that absorbs shock as the tire rolls over rough features on the surface. Tires provide a footprint, called a contact patch, designed to match the vehicle's weight and the bearing on the surface that it rolls over by exerting a pressure that will avoid deforming the surface.
There have been many human powered vehicles designed and constructed specifically for transporting loads since their earliest appearance in the 20th century. They are referred to variously depending on the number of wheels — typically two, three, or four — and by their specific use. Adjectives used to describe the tasks to which the bicycles, dicycles, tricycles, or quadracycles are put include cargo cycles, freight cycles, box cycles, carrier cycles, and so on. Sometimes they are also called cycletrucks, which uses a sense of the word 'truck' predating the automobile.
Mushing is a sport or transport method powered by dogs. It includes carting, pulka, dog scootering, sled dog racing, skijoring, freighting, and weight pulling. More specifically, it implies the use of one or more dogs to pull a sled, most commonly a specialized type of dog sled on snow, or a rig on dry land.
A trailer is an unpowered vehicle towed by a powered vehicle. It is commonly used for the transport of goods and materials.
A tank car or tanker is a type of railroad car or rolling stock designed to transport liquid and gaseous commodities.
Rolling resistance, sometimes called rolling friction or rolling drag, is the force resisting the motion when a body rolls on a surface. It is mainly caused by non-elastic effects; that is, not all the energy needed for deformation of the wheel, roadbed, etc., is recovered when the pressure is removed. Two forms of this are hysteresis losses, and permanent (plastic) deformation of the object or the surface. Note that the slippage between the wheel and the surface also results in energy dissipation. Although some researchers have included this term in rolling resistance, some suggest that this dissipation term should be treated separately from rolling resistance because it is due to the applied torque to the wheel and the resultant slip between the wheel and ground, which is called slip loss or slip resistance. In addition, only the so-called slip resistance involves friction, therefore the name "rolling friction" is to an extent a misnomer.
An electric bicycle is a motorized bicycle with an integrated electric motor used to assist propulsion. Many kinds of e-bikes are available worldwide, but they generally fall into two broad categories: bikes that assist the rider's pedal-power and bikes that add a throttle, integrating moped-style functionality. Both retain the ability to be pedaled by the rider and are therefore not electric motorcycles. E-bikes use rechargeable batteries and typically are motor-powered up to 25 to 32 km/h. High-powered varieties can often travel more than 45 km/h (28 mph).
A kick scooter is a human-powered street vehicle with a handlebar, deck, and wheels propelled by a rider pushing off the ground with their leg. Today the most common scooters are made of aluminum, titanium, and steel. Some kick scooters made for younger children have 3 to 4 wheels and are made of plastic and do not fold. High-performance kickbikes are also made. A company that had once made the Razor Scooters revitalized the design in the mid-nineties and early two-thousands. Three-wheel models where the frame forks into two decks are known as Y scooters or trikkes.
A kickbike is a type of kick scooter and is a human-powered street vehicle with a handlebar, deck, and wheels propelled by a rider pushing off the ground. The kickbike often has a large standard size bicycle front wheel and a much smaller rear wheel, which allows for a much faster ride.
A motorized scooter is a stand-up scooter powered by either a small internal combustion engine or electric hub motor in its front and/or rear wheel. Classified as a form of micro-mobility, they are generally designed with a large center deck on which the rider stands. The first motorized scooter was manufactured by Autoped in 1915.
A semi-trailer is a trailer without a front axle. The combination of a semi-trailer and a tractor truck is called a semi-trailer truck.
A mobility aid is a device that helps individuals with mobility impairments to walk or improve their overall mobility.
Bosco Ntaganda is a convicted war criminal and the former military chief of staff of the National Congress for the Defense of the People (CNDP), an armed militia group operating in the North Kivu province of the Democratic Republic of the Congo (DRC). He is a former member of the Rwandan Patriotic Army and allegedly a former Deputy Chief of the General Staff of the Patriotic Forces for the Liberation of Congo (FPLC), the military wing of the Union of Congolese Patriots.
An electric skateboard is a personal transporter based on a skateboard. The speed is usually controlled by a wireless hand-held throttle remote, or rider body weight-shifting between front of the board for forward motion and rear for braking. As for the direction of travel to the right or left, it is adjusted by tilting the board to one side or the other. The classification of electric skateboards and legality of their use on roads or pavements varies between countries.
The M23 rebellion was an armed conflict in North Kivu, Democratic Republic of the Congo (DRC), that occurred between the March 23 Movement and government forces between 4 April 2012 and 7 November 2013. It ended when a peace agreement was made among eleven African nations, and the M23 troops surrendered in Uganda. The rebellion was part of continued fighting in the region after the formal end of the Second Congo War in 2003. The conflict reignited in late 2021 after rebel "general" Sultani Makenga and 100 rebel fighters attacked the border town of Bunagana but failed. A few months later, with a much larger force, the rebels of the M23 movement renewed their attack and captured Bunagana.
A cardboard bicycle is a bicycle composed mostly of cardboard. Only prototypes have been made as of 2012. Reported benefits include low cost, and construction from recyclable and renewable materials. The low cost is also expected to act as a theft deterrent.
Bicycle poverty reduction is the concept that access to bicycles and the transportation infrastructure to support them can dramatically reduce poverty. This has been demonstrated in various pilot projects in South Asia and Africa. Experiments done in Africa and Sri Lanka on hundreds of households have shown that a bicycle can increase the income of a poor family by as much as 35%.
Scoot Networks, also known as just Scoot or Scoot Rides, is an American company which provides public electric scooter and electric bicycle sharing systems. The company is based in San Francisco, California.
