Christine's Way Out.

In the Junior class Design & Engineering, we learned about different types of bikes, We learned different math concepts such as finding the radius of a circle and different shapes like a cone. We also learned about Kinetic and Potential energy. Another, topic we learned about gears and the effect they have on the different type of bikes depending on the terrain of where the bike is going. We even had a Divvy representative come and see us for a field experience to learn about the different parts of the bike. Lastly we had to interview someone that biked at least once a day to learn about the likes and dislikes of their bike I asked my older brother questions like what he wanted to change etc he answered by saying “I love my bike, but riding around downtown with a seat that hurts you every time you petal sucks” For this action project we have been given personas to adjust a bike to their needs.I have learned about the different needs of other people, and about the gears that are on a bike. I learned that a bike doesn’t have to have a chain.

MI,Demo Bike,(2016)

 My user is Christine, she is thirteen and she bikes to school from Peterson Park using the North Branch route which involves a lot of hills and dips.She also has to take her bike up and down the stairs. The bike is lightweight and it is fold able it also has a handle to carry it down while folded. We call it the Ranger .It's easy to carry. When she needs it she can change the gears depending on the path she is going and the rain shield will protect her through the weather it comes out by pushing the button on the handlebars, it has pockets so she doesn’t have to have a basket . It has quick release front and back tires to change in case of terrain. The reason to believe in our the Ranger is because it is the bike that best suits her needs, we believe that we have touched on every issue she has to the best of our ability because we don’t how much she can carry, so we made the bike out of a lightweight material. We made the bike foldable for her to take down the five steps below the ground. We don’t know her budget, we are able to negotiate with her if necessary. She lives 3 miles from her school, it would take her 19 minutes to get there according to google maps. The average speed that she goes is 8 ½ mph or 4.24 m/s. The radius of the wheels are 12inches. The Ranger show kinetic energy when they are going down a hill and show potential at the top of the hill.

AL, Bike Design (2016)

The Circumference is 75.36. The diameter is 24 inches. To figure out the rotations of the bike wheel you take D/C and divide it so it looks like this 190080/75.36 = 2522.29. The scale of the model is 6/1 . Since Christine wants to look at the scenery around her so she wants an easy ride which involves the gears which means I had to look up the best gear ratio for a bike which is 44/66.

I kept in mind her needs and what can be done without too many complications. Two obstacles were making the three-dimensional models and trying to make up a bike for her needs. I am proud of getting through this unit as it was very challenging for me because of the math portion and this action project.