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Human Power
The bicycle is a tremendously
efficient means of transportation. In fact cycling
is more efficient than any other method of
travel--including walking! The one billion bicycles
in the world are a testament to its effectiveness.
The engine for this efficient mode of transport is
the human body. Because bodies are fueled by food,
diet plays an important role in how the body
performs. Different muscle groups and types provide
the power. Genetic inheritance, intensive training,
and a competitive drive help top athletes push the
boundaries of endurance and speed on the
bicycle.
How Far Do You Want To Go?
It takes less energy to bicycle
one mile than it takes to walk a mile. In fact, a
bicycle can be up to 5 times more efficient than
walking. If we compare the amount of calories
burned in bicycling to the number of calories an
automobile burns, the difference is astounding. One
hundred calories can power a cyclist for three
miles, but it would only power a car 280 feet (85
meters)!
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A comparison of the energy cost of
various forms of transportation shows that
the bicycle is most energy-efficient.
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