Bicycle – a Perfect Associate
Thursday, April 1st, 2010A bicycle is a human supercharged vehicle that has a frame affiliated with two wheels and that is
driven by a pedal. introduced during the 19th centuries bicycles are known to outdo the
total number of motor vehicles by a ratio of 2 to 1. In many areas of the globe, bicycles are the main method of transport. Although
the essential use of the bicycle is as a means of carry, it has developed other uses including recreational activities, fitness actions
law enforcement diligences and competitive sports.
The Story of Bicycles
Since the inception of the chain-driven model in around 1885, the primary pattern and the shape of a
typical bicycle has remained relatively unchanged. But, other advances such as using computers to design
and check the stability have been made to the bicycle from its manufacturing process. These methods have greatly aided the spawn of
particularized bicycles for particular purposes such as racing, utility and law enforcement uses. In addition, many of the parts that played a
major role in the development of automobiles for instance, ball bearings, pneumatic tires and spoke tensioned wheels were initially intended for
the bicycle.
Features of a Bicycle
Dynamics
of the bicycle is something that should be mentioned to first. A bicycle has to maintain its center of gravity over the wheels in order to stay upright or balanced.
Therefore, it reaches this by the moving forward using the steering which is commonly provided by the rider
and sometimes even by the bicycle itself. Additionally, in order to navigate successfully the body of the rider must balance out the dynamics,
particularly at turns. A technique referred to as counter-steering is used to attain this task by directly turning the handlebars with the hands
or indirectly leaning or slanting the bicycle.
Through both biological and mechanical view points, the bicycle is an highly
economic machine. When
comparing the energy an individual must spend to travel a given distance, the bicycle is stated to be the most efficiently
operating self supercharged method of transportation. The bicycle wheels carry nearly 99% of the energy because the rider exerts energy to pedals. But in
bicycles that have gear mechanisms, the energy needed will be reduced Nonetheless the air drag faced by the rider will
always remain a problem. When the speed is high, a lot of energy will be needed
to overcome this airdrag resulting in an exhaustive ride for the rider. Nevertheless, the exerted drag can be importantly
diminished by placing the rider in a supine or a prone position and by covering the bicycle with fairing that is aerodynamic.
The main
features of a bicycle are frame, steering mechanisms, seating, drivetrain, suspension, wheels and brakes. Certain bicycles may include optional
mechanics such as gearing which uses several sizes of gears to obtain a mechanical advantage from the bicycle. By using gears, the efficiency of the bicycle can be increased by descreasing effort and increasing output.