The Life Saving Bicycles
A bicycle is a human powered vehicle that has a frame affiliated with two wheels and that is
driven by a pedal. Bicycles were first presented in the 19th century and it is claimed that presently there are approximately about
one billion bicycles worldwide, outnumbering motorcars 2 to 1. In many areas of the globe, bicycles are the main method of carry. Although
the primary use of the bicycle is as a means of transport, it has developed other uses including recreational actions, fitness activities
law enforcement diligences and competitive sports.
Bicycles and Its Story
Ever since the chain driven model was presented to the market, the key
design of the bicycle had remained unchanged up to day. However, the usage of modern material and design methods
such as computer-aided innovation has improved the many aspects of the bicycle. These methods have greatly aided the spawn of
specialized bicycles for particular purposes such as racing, utility and law enforcement uses. Additionally, the concept of the bicycle has up to a great extent extended its contribution for the development of automobiles by introducing concepts such as ball bearings, pneumatic tires and spoke tensioned wheels.
Things to Look in a Bicycle
Dynamics
of the bicycle is something that should be mentioned to first. Bicycle needs its centre of gravity in order to be in its space. So it reaches this by moving forward
using the steering which provides some balance to the rider. In addition in order to successfully navigate a turn, the combined or total center of mass
of both the bicycle and the rider must lean into the turn. A technique mentioned 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 extremely
efficient machine. Energy needed from the rider for the bicycle to execute its
curiosities are high on the list but given the distance that a bicycle can take you through without fuel, it becomes a
notable journey at the end. Nearly, 99% of the energy is conducted to the wheels of the bicycle when a
rider exerts energy into the pedals. Nevertheless when gears mechanics are used this figure may drop by 10-15%.A rider using a bicycle
experiences air drag or the resistive force that is exerted by air. When the speed is high, a lot of energy will be needed
to overcome this airdrag resulting in an exhaustive ride for the rider. The only way to reduce the air drag is to significantly reduce the position to supine or prone that is in line with aerodynamics.
The main
features of a bicycle are frame, steering mechanics, seating, drivetrain, suspension, wheels and brakes. Some
bicycles use optional mechanisms to get advantage for the dynamics of the bicycle. Using gears a rider can produce a higher power output with a relatively low
power input and thus, maximizing the efficiency of the bicycle.
