0_Wizard
I ride a unicycle, a vehicle that touches the ground with only one wheel.
A unicycle is a vehicle that touches the ground with only one wheel.
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Unicycle
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Unicycle
A unicycle is a vehicle that touches the ground with only one wheel. The most common variation has a frame with a saddle, and has a pedal-driven direct drive. A two speed hub is commercially available for faster uncycling. Unicycling is practiced professionally in circuses, by street performers, in festivals, and as a hobby. Unicycles have also been used to create new sports such as unicycle hockey. In recent years, unicycles have also been used in activities similar to mountain biking or trials. US patents for single-wheeled 'velocipedes' were published in 1869 by Frederick Myers and in 1881 by Battista Scuri.
Suspension (vehicle)
Suspension is the system of tires, tire air, springs, shock absorbers and linkages that connects a vehicle to its wheels and allows relative motion between the two. Suspension systems must support both roadholding/handling and ride quality, which are at odds with each other. The tuning of suspensions involves finding the right compromise. It is important for the suspension to keep the road wheel in contact with the road surface as much as possible, because all the road or ground forces acting on the vehicle do so through the contact patches of the tires. The suspension also protects the vehicle itself and any cargo or luggage from damage and wear.
Unicycle trials
Unicycle trials is a form of unicycling which involves participants attempting to ride a unicycle over obstacles without any part of the rider touching the ground. The obstacles traversed can be set up specifically for the purpose of unicycle trials, but are often walls, railings, ledges and other "street furniture" found in an urban environment. The sport is derived from (or at least inspired by) bike trials and motorcycle trials. Obstacles are traversed using various moves. Hopping is achieved by suddenly forcing the unicycle pedals downwards while holding the seat, the reactive forces resulting from the compression of the tyre lift the unicycle into the air.
Electric bicycle laws
Many countries have enacted electric bicycle laws to regulate the use of electric bicycles. Countries such as the United States and Canada have federal regulations governing the safety requirements and standards of manufacture. Other countries like the signatories of the European Union have agreed to wider-ranging legislation covering use and safety of their term EPAC (electric pedal-assisted cycles). However, confusion remains regarding the various laws involving electric bicycles. This stems from the fact that while some countries have national regulations, the legality of road use is left to states and provinces, and then complicated further by municipal laws and restrictions.
Three-wheeler
A three-wheeler is a vehicle with three wheels. Some are motorized tricycles, which may be legally classed as motorcycles, while others are tricycles without a motor, some of which are human powered vehicles and animal powered vehicles. Many three-wheelers which exist in the form of motorcycle-based machines are often called trikes and often have the front single wheel and mechanics similar to that of a motorcycle and the rear axle similar to that of a car. Often such vehicles are owner-constructed using a portion of a rear-engine, rear-drive Volkswagen Beetle in combination with a motorcycle front end.
Limited-slip differential
A limited-slip differential is a type of differential that allows its two output shafts to rotate at different speeds but limits the maximum difference between the two shafts. In an automobile, such limited-slip differentials are sometimes used in place of a standard differential, where they convey certain dynamic advantages, at the expense of greater complexity. In 1932, Ferdinand Porsche designed a Grand Prix racing car for the Auto Union company. The high power of the design caused one of the rear wheels to experience excessive wheel spin at any speed up to . In 1935, Porsche commissioned the engineering firm ZF to design a limited-slip differential to improve performance.
Personal transporter
A personal transporter (also personal light electric vehicle, personal mobility device, electric rideable ) is a class of compact, portable, electrically powered electric vehicle for transporting an individual at speeds that don't normally exceed , which includes electric skateboards, electric kick scooters, self-balancing unicycles and Segways. Made possible by recent advances in vehicle battery and motor-control technologies, legislators are in the process of determining how these devices should be classified, regulated and accommodated during a period of rapid innovation. Excluded from this legal category are electric bicycles (that are considered to be a type of bicycle), electric motorbikes and scooters (that are treated as a type of scooter) and powered mobility aids with 3 or 4 wheels on which the rider sits (which fall within regulations covering powered mobility scooters).
1_Apprentice
Thats cool, how old are unicycles anyway?
0_Wizard
The US patents for them were published in 1869 by Frederick Myers.
US patents for single-wheeled 'velocipedes' were published in 1869 by Frederick Myers and in 1881 by Battista Scuri.
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Unicycle
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List of prolific inventors
Thomas Alva Edison was widely known as the America's most prolific inventor, even after his death in 1931. He held a total of 1,093 U.S. patents (1,084 utility patents and 9 design patents). In 2003, he was passed by Japanese inventor Shunpei Yamazaki. On February 26, 2008, Yamazaki was passed by Australian inventor Kia Silverbrook. Yamazaki passed Silverbrook in 2017. Inventors with 200 or more worldwide utility patents are shown in the following table. While in many cases this is the number of utility patents granted by the United States Patent and Trademark Office, it may include utility patents granted by other countries, as noted by the source references for an inventor.
Thomas Edison
Thomas Alva Edison (February 11, 1847October 18, 1931) was an American inventor and businessman, who has been described as America's greatest inventor. He developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb. Dubbed "The Wizard of Menlo Park", he was one of the first inventors to apply the principles of mass production and large-scale teamwork to the process of invention, and because of that, he is often credited with the creation of the first industrial research laboratory.
Heather Kalenchuk
Heather Mary Yvonne Kalenchuk (born Heather Seeley, March 14, 1984) is a Canadian curler from Regina, Saskatchewan. She previously played lead for Amber Holland. Born in Edmonton, Alberta, Kalenchuk won the 2002 provincial high school mixed championship. In 2003, 2004 and 2005, she played in the provincial junior championship, but did not win. In 2005 and 2007, Kalenchuk played at the University national championships. In 2008, the team won their only Grand Slam event, the 2008 Players' Championships. In 2009 the team would earn a spot in the Canadian Olympic Curling Trials, after defeating Marie-France Larouche in the C Qualifier.
Unicycle
A unicycle is a vehicle that touches the ground with only one wheel. The most common variation has a frame with a saddle, and has a pedal-driven direct drive. A two speed hub is commercially available for faster uncycling. Unicycling is practiced professionally in circuses, by street performers, in festivals, and as a hobby. Unicycles have also been used to create new sports such as unicycle hockey. In recent years, unicycles have also been used in activities similar to mountain biking or trials. US patents for single-wheeled 'velocipedes' were published in 1869 by Frederick Myers and in 1881 by Battista Scuri.
Apple Inc. v. Samsung Electronics Co.
Apple Inc. v. Samsung Electronics Co., Ltd. was the first of a series of ongoing lawsuits between Apple Inc. and Samsung Electronics regarding the design of smartphones and tablet computers; between them, the companies made more than half of smartphones sold worldwide as of July 2012. In the spring of 2011, Apple began litigating against Samsung in patent infringement suits, while Apple and Motorola Mobility were already engaged in a patent war on several fronts. Apple's multinational litigation over technology patents became known as part of the mobile device "smartphone patent wars": extensive litigation in fierce competition in the global market for consumer mobile communications.
War of the currents
The war of the currents (sometimes called battle of the currents) was a series of events surrounding the introduction of competing electric power transmission systems in the late 1880s and early 1890s. It included commercial competition, a debate over electrical safety, and a media/propaganda campaign that grew out of it, with the main players being the direct current (DC) based Edison Electric Light Company and the alternating current (AC) based Westinghouse Electric Company. It took place during the introduction and rapid expansion of the alternating current standard (already in use and advocated by several US and European companies) and its eventual adoption over the direct current distribution system.
Fujitsu Ltd. v. Netgear Inc.
Fujitsu Ltd v. Netgear Inc was a patent infringement case centered on three patents claimed to be required for full compliance of the IEEE 802.11 (WiFi) standard and the WiFi Alliance Wireless Multimedia Extensions (WMM) Specification. US patents 4,975,952, 6,018,642, and 6,469,993 were owned by Philips Electronics, Fujitsu, and LG Electronics respectively, and placed in the Via Licensing pool. The Via Licensing pool claimed to hold all patents required for a complete WiFi/WMM implementation. Netgear did not enter an agreement with Via Licensing but produced a series of products that conform to the WiFi standard and WMM Specification.
1_Apprentice
thats so old, are they hard to ride?
0_Wizard
Without a rider, they have no stability, but a proficient unicyclist is more stable than a proficient bicyclist.
Without a rider, unicycles lack stability – however, a proficient unicyclist is usually more stable than a similarly proficient rider on a bicycle as the wheel is not constrained by the linear axis of a frame.
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Unicycle
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Unicycle
A unicycle is a vehicle that touches the ground with only one wheel. The most common variation has a frame with a saddle, and has a pedal-driven direct drive. A two speed hub is commercially available for faster uncycling. Unicycling is practiced professionally in circuses, by street performers, in festivals, and as a hobby. Unicycles have also been used to create new sports such as unicycle hockey. In recent years, unicycles have also been used in activities similar to mountain biking or trials. US patents for single-wheeled 'velocipedes' were published in 1869 by Frederick Myers and in 1881 by Battista Scuri.
Bicycle and motorcycle dynamics
Bicycle and motorcycle dynamics is the science of the motion of bicycles and motorcycles and their components, due to the forces acting on them. Dynamics falls under a branch of physics known as classical mechanics. Bike motions of interest include balancing, steering, braking, accelerating, suspension activation, and vibration. The study of these motions began in the late 19th century and continues today. Bicycles and motorcycles are both single-track vehicles and so their motions have many fundamental attributes in common and are fundamentally different from and more difficult to study than other wheeled vehicles such as dicycles, tricycles, and quadracycles.
List of Prince George's County Public Schools middle schools
This article provides details on the middle schools within the Prince George's County Public Schools system, in the U.S. State of Maryland. Middle schools operate as either 6th–8th grade middle schools or 7th–8th grade middle schools. Some middle schools are part of combined PreK-8th grade elementary/middle schools, and are referred to as "Academies". Grades 7–9 junior high schools were completely phased out in the mid-1980s. Recent efforts have been made to convert most middle schools to the more popular grades 6–8 model. Issues in the past such as over-enrollment, lack of classroom space, and funding, had made it hard to convert all middle schools to a grades 6–8 configuration, but with increased funding and the addition of new middle schools, the transition is slowly being made.
2011–13 Chilean student protests
The 2011–2013 Chilean protests — known as the Chilean Winter (in particular reference to the massive protests of August 2011) or the Chilean Education Conflict (as labelled in Chilean media) — were a series of student-led protests across Chile, demanding a new framework for education in the country, including more direct state participation in secondary education and an end to the existence of profit in higher education. Currently in Chile, only 45% of high school students study in traditional public schools and most universities are also private. No new public universities have been built since the end of the Chilean transition to democracy in 1990, even though the number of university students has swelled.
List of Kamen Rider Fourze characters
The main setting of the series is the fictional , the school where the main characters attend along with many unique characters. The is a club that Gentaro Kisaragi forms to gain new friends at Amanogawa High School, named after Fourze's predecessors: the various Kamen Riders. The club's members assist Kamen Rider Fourze in his battles against the Zodiarts. In addition, they investigate the urban legends that surround the existence of the past Kamen Riders. The Kamen Rider Club's headquarters are the remains of the lunar base owned by the which developed the Kamen Rider Fourze technology and the Zodiarts Switches.
Armourer
Historically, an armourer is a person who makes personal armour, especially plate armour. In modern terms, an armourer is a member of a military or police force who works in an armoury and maintains and repairs small arms and weapons systems, with some duties resembling those of a civilian gunsmith. With the renewed interest in traditional armour and weaponry, the occupation also involves working with film, stage, and historical and reenactment societies. Period costumes may require reproduction armour, swords, and related equipment. Armourers are the oldest trade in the British Army and trace their heritage back several centuries.
Body broker
A body broker (also non-transplant tissue banks) is a firm or an individual that buys and sells cadavers or human body parts. Whereas the market for organ transplantation is heavily regulated in the United States, the use of cadaver parts for research, training, and other uses is not. Trade in these body parts is performed in a manner akin to raw materials, though many brokers say they charge fees as opposed to selling body parts. Whereas body snatching was a common way of acquiring bodies for research up until the 20th century, modern body brokers usually receive cadavers via body donation. Body brokers often offer free cremation as a means to induce donation from families who are unable to pay funeral costs, returning ashes of part of the body to the next of kin.
1_Apprentice
damn, i guess it takes a lot of learning so they would control it better, are they very common or less popular?
0_Wizard
It is very common in circuses, with street performers, and in festivals.
Unicycling is practiced professionally in circuses, by street performers, in festivals, and as a hobby.
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Unicycle
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Street performance in Hong Kong
Street performance or busking is the act of performing in public places. Busking is legal in Hong Kong and all street performers are protected under Hong Kong Basic Law Article 34. Hong Kong government does not apply licensing system for street performers and there is no official data about the number of street performers in Hong Kong. Located at Sai Yeung Choi Street in Mong Kok, music, speaker, sirens and horns can be loudly heard. The Hong Kong government has adopted pedestrian schemes for this street, in which it prohibits vehicles to pass by from 4pm to 10pm on Monday to Saturday; and from noon to 10pm on Sunday and public holidays.
Circus
A circus is a company of performers who put on diverse entertainment shows that include clowns, acrobats, trained animals, trapeze acts, musicians, dancers, hoopers, tightrope walkers, jugglers, magicians, unicyclists, as well as other object manipulation and stunt-oriented artists. The term 'circus' also describes the performance which has followed various formats through its 250-year modern history. Philip Astley is credited with being the 'father' of the modern circus when he opened the first circus in 1768 in England. A skilled equestrian, Astley demonstrated trick riding, riding in a circle rather than a straight line as his rivals did, and thus chanced on the format which was later named a 'circus'.
Street performance
Street performance or busking is the act of performing in public places for gratuities. In many countries the rewards are generally in the form of money but other gratuities such as food, drink or gifts may be given. Street performance is practiced all over the world and dates back to antiquity. People engaging in this practice are called street performers or buskers. Performances are anything that people find entertaining. Performers may do acrobatics, animal tricks, balloon twisting, caricatures, clowning, comedy, contortions, escapology, dance, singing, fire skills, flea circus, fortune-telling, juggling, magic, mime, living statue, musical performance, puppeteering, snake charming, storytelling or reciting poetry or prose, street art such as sketching and painting, street theatre, sword swallowing, and ventriloquism.
Edmonton International Street Performers Festival
The Edmonton International Street Performers Festival (sometimes known as StreetFest) is an annual, 10-day performance festival that takes place in mid-July at Sir Winston Churchill Square, in the city of Edmonton, Alberta, Canada. The festival was founded in 1985 by Sheldon Wilner and Dick Finkel with the intention of bringing the art of street performance to Edmonton’s downtown region. Every year, the festival brings in performers from around the world, and gives an opportunity for local performers to showcase their talent. In 2014, the festival featured roughly 1500 performances, and was attended by 250,000 people.
Freak show
A freak show is an exhibition of biological rarities, referred to as "freaks of nature". Typical features would be physically unusual humans, such as those uncommonly large or small, those with both male and female secondary sexual characteristics, people with other extraordinary diseases and conditions, and performances that are expected to be shocking to the viewers. Heavily tattooed or pierced people have sometimes been seen in freak shows, as have attention-getting physical performers such as fire-eating and sword-swallowing acts. In the mid-16th century, freak shows became popular pastimes in England.
Chindon'ya
Chindon'ya (チンドン屋), also called Japanese marching band, and in the old times also called tōzaiya (東西屋) or hiromeya (広目屋 or 披露目屋) are a type of elaborately costumed street musicians in Japan that advertise for shops and other establishments. The performers advertised the opening of new stores and other venues, or promoted special events such as price discounts. Nowadays, chindon'yas are rare in Japan. The word consists of Japanese sound symbolism "chin" and "don" to describe the instruments, and the "-ya" suffix which roughly equates to the English "-er" suffix in this context. Street performers existed in Japan for a long time.
Emplume
Emplume is a street theater duet made up of two twin sisters. Their work has been classified as "urban animation." The duet has performed in their native Quebec and various venues around the world. The circus and theater company Emplume was founded by Josette and Francoise Lepine in 2007, who produce and interpret all the acts. Françoise is a multidisciplinary artist who had her debut on street theater during her adolescence. She obtained her diploma at the Rimouski Music Conservatory, in Quebec City Circus School and Clown Francine Coté School. In 2009 she obtained a master's degree in theoretical physics.
1_Apprentice
O ok, makes sense since its a neat trick. Were they invented before or after the bicycle? I know tricycles were first if i remember correctly.
0_Wizard
I am not sure, but bikes, trikes and unicycles all share several common parts including wheels, pedals, cranks and forks.
Bicycles, tricycles and quadracycles share (with minor variations) several basic parts including wheels, pedals, cranks, forks, and the saddle with unicycles.
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Unicycle
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Unicycle
A unicycle is a vehicle that touches the ground with only one wheel. The most common variation has a frame with a saddle, and has a pedal-driven direct drive. A two speed hub is commercially available for faster uncycling. Unicycling is practiced professionally in circuses, by street performers, in festivals, and as a hobby. Unicycles have also been used to create new sports such as unicycle hockey. In recent years, unicycles have also been used in activities similar to mountain biking or trials. US patents for single-wheeled 'velocipedes' were published in 1869 by Frederick Myers and in 1881 by Battista Scuri.
Tricycle
A tricycle, often abbreviated to trike, is a human-powered (or gravity-powered) three-wheeled vehicle. Some tricycles, such as cycle rickshaws (for passenger transport) and freight trikes, are used for commercial purposes, especially in the developing world, particularly Africa and Asia. In the West, adult-sized tricycles are used primarily for recreation, shopping, and exercise. Tricycles are favoured by children and senior adults for their apparent stability versus a bicycle; however a conventional trike has poor dynamic lateral stability, and the rider must take care when cornering to avoid tipping the trike over.
Recumbent bicycle
A recumbent bicycle is a bicycle that places the rider in a laid-back reclining position. Most recumbent riders choose this type of design for ergonomic reasons; the rider's weight is distributed comfortably over a larger area, supported by back and buttocks. On a traditional upright bicycle, the body weight rests entirely on a small portion of the sitting bones, the feet, and the hands. Most recumbent models also have an aerodynamic advantage; the reclined, legs-forward position of the rider’s body presents a smaller frontal profile. A recumbent holds the world speed record for a bicycle, and they were banned from racing under the Union Cycliste Internationale (UCI) in 1934, and now race under the banner of the World Human Powered Vehicle Association (WHPVA) and International Human Powered Vehicle Association (IHPVA).
Crankset
The crankset (in the US) or chainset (in the UK), is the component of a bicycle drivetrain that converts the reciprocating motion of the rider's legs into rotational motion used to drive the chain or belt, which in turn drives the rear wheel. It consists of one or more sprockets, also called "chainrings" or "chainwheels" attached to the "cranks", "arms", or "crankarms" to which the pedals attach. It is connected to the rider by the pedals, to the bicycle frame by the bottom bracket, and to the rear sprocket, cassette or freewheel via the chain. The two "cranks", one on each side and usually mounted 180° apart, connect the bottom bracket axle to the pedals.
Fixed-gear bicycle
A fixed-gear bicycle (or fixed-wheel bicycle, commonly known in some places as a fixie) is a bicycle that has a drivetrain with no freewheel mechanism. The freewheel was developed early in the history of bicycle design but the fixed-gear bicycle remained the standard track racing design. More recently the "fixie" has become a popular alternative among mainly urban cyclists, offering the advantage of simplicity compared with the standard multi-geared bicycle. Most bicycle hubs incorporate a freewheel to allow the pedals to remain stationary while the bicycle is in motion, so that the rider can coast, i.e., ride without pedalling using forward momentum.
Bicycle
A bicycle, also called a cycle or bike, is a human-powered, 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 late 19th century in Europe, and by the early 21st century, more than 1 billion have been produced worldwide. 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.
Electric bicycle
An electric bicycle, also known as an e-bike, powerbike or booster bike, is a bicycle with an integrated electric motor which can be used for propulsion. Many kinds of e-bikes are available worldwide, from e-bikes that only have a small motor to assist the rider's pedal-power (i.e., pedelecs) to somewhat more powerful e-bikes which tend closer to moped-style functionality: all, however, retain the ability to be pedalled by the rider and are therefore not electric motorcycles. E-bikes use rechargeable batteries and the lighter varieties can travel up to , depending on the laws of the country in which they are sold, while the more high-powered varieties can often do in excess of .
1_Apprentice
not surprising, thanks for the info.