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"One world, Two Wheels"
Transcript of "One world, Two Wheels"
a recent (2011) study published by The U.S. Centers for Disease Control and Prevention found that over one-third of Americans are obese. http://www.cdc.gov/nchs/data/databriefs/db56.pdf 1. Riding bikes = exercise Riding bikes is cost effective! According to a 2010 study by AAA, the average cost of owning a medium sized car was $9,519 a year. http://latimesblogs.latimes.com/money_co/2010/04/aaa-the-price-of-owning-a-car-any-car-rose-over-the-last-year.html insurance
The average annual cost of owning a bike? $390 http://wheels.blogs.nytimes.com/2009/03/18/the-costs-of-owning-a-car/ $200 for maintenance,
$60 for replacement and upkeep of helmets and other accessories,
$60 for the bike itself (a tenth of the cost of a $600 commuter bike with an estimated 10-year life span)
$70 for theft and replacement of seats, wheels and other core components, Many factors complicate this issue:
poverty and obesity
access: urban "food deserts"
additives, marketing, culture, policy
BUT you don't need a degree to understand the importance of exercise and diet Bikes are green machines! I tricked you! Actually, there is a
way to calculate the miles per gallon
of gas for a bicycle. Here's How:
the food we eat USES ENERGY to produce and transport
But, food = calories; or, the amount of ENERGY it takes to heat 1 liter of water 1 degree celcuis - FUEL for your body!
cars USE ENERGY. A lot of energy.
Given the speed of a biker (mph), the rate at which s/he burns calories, and the estimated amount of fossil fuel used in the production of those (food) calories.... we can determine both:
1) the amount of actual fossil fuel used to bike a mile
2) we can compare the energy efficiency of cars and cyclists. Don't believe me? then check out this super complicated formula! but seriously:
1 gallon gasoline =about 31,000 calories of energy
biking at15 mph a perosn burns 0.049 calories per pound per minute.
a 175-pound person burns 515 calories in an hour, or about 34 calories per mile.
therefore, a person could ride 912 miles on the energy equivalent of a gallon of gas (31,000 calories). http://ijar.chiggins.com/bicycle-mpg-calculator/ 2. A bike is more affordable to begin with, and cheaper to maintain than a car 3. Bikes don't pollute the environment Furthermore... bikes are stylish bikes are romantic bikes can fly! ok, aliens can fly. But bikes can give us a totally new perspective. "This point of view - faster than a walk, slower than a train, often slightly higher than a person - became my panoramic window on much of the world over the last thirty years...It's a big window and it looks out on a mainly urban landscape...Through this window, I catch glimpses of the mind of my fellow man, as expressed in the cities he lives in." (2)
Thanks! and happy riding.