MONO WHEEL,Swarnandhra(APSSDC)

A Monowheel is a one-wheeled single-track vehicle similar to a unicycle. However, instead of sitting above the wheel, the rider sits either within it or next to it. The wheel is a ring, usually driven by smaller wheels pressing against its inner rim. Most are single-passenger vehicles, though multi- passenger models have been built. Hand-cranked and pedalpowered mono wheels were patented and built in the late 19th century; most built in the 20th century have been motorized. Some modern builders refer to these vehicles as monocycles, though that term is also sometimes used to describe motorized unicycles. Today, mono wheels are generally built and used for fun and entertainment purposes, though from the 1860s through .to the 1930s, they were proposed for use as serious transportation In view of the efficiency of bicycles, it is natural to ask if a one-wheeled vehicle provides any advantages. A one-wheeled vehicle is potentially more efficient than a two-wheeled vehicle since frictional losses at the wheels and in the drive train is reduced. However, just as a bicycle is dynamically more challenging to ride than a tricycle, a vehicle with a single wheel poses yet more challenges to stability and control there are two main types of single- wheeled vehicles. In a unicycle, the rider sits above the wheel. These vehicles are recognizable by most people. Less well known is the monocycle, where the rider sits inside the wheel. Like the bicycle, the unicycle and monocycle are statically unstable. Since the center of gravity (cg) is lower for the monocycle, this vehicle is potentially easier to ride than the unicycle. Nevertheless, piloting a monocycle is a challenging task. In this article, we discuss the history of the monocycle. Although many potential problems were inherent in their design, monocycles were adapted to accept motors. Garavaglia is credited with motorizing the first monocycle in 1904. Inventors and entrepreneurs soon began to promote the anticipated benefits of one-wheeled conveyances in contemporary publications and promotional materials.