Self-Assessment/Reflection for Proeject 2

Class 8 Post

The audience that I want to reach is one that I can educate in a topic I really know about in order for them to take away something from what I had to say. I want them to have a feeling of fulfillment or see certain aspects of the world from a new perspective.

Class 7 Post

During class 7, we biked all the way down to Embarcadero to try out some ice cream and learn about the history of the location. It was interesting biking through more busy streets to lean how to navigate through congested areas. After, we biked to talk with Dr Doug Bauer about how he uses evidence during his research and how it may take plenty of time and critical analysis to come to conclusions. After which, we  biked all the way back to campus which was the most tiring bike ride of the class so far, but it was well worth the trip because I was able to see new places and learn more about the area that surrounds me.

Classs 5 Makeup

As a makeup for class 5, I was instructed to watch a 45 minute lecture on the physics behind a bicycle. Concerning the physics aspect of the lecture, the instructor mentioned that in order to turn a certain direction, a person must first steer in the opposite direction in order to cause the bike to lean into the intended direction. Although this is taught in motorcycling class, this action is learned subconsciously for biker. This explains why when you end up biking very close to a rail or sidewalk, it becomes very difficult to steer away form it because you;re unable to steer into it first. The instructor also went over how angular momentum is what keeps a wheel or hoop balanced when rolling, which also plays a role in the gyroscopic effects of a wheel remaining vertically upright when spinning. However, the angular momentum and gyroscopic effects are almost negligible to to how light the wheels are in comparison to the rider. Next, he mentions that the faster a rider is biking, only small adjustments are needed to turn due to the proportions of force, velocity, and the radius of the turn. This explains why balancing on a bike is much easier at greater speeds, and why you have to turn the wheel much more at lower speeds. The instructor also mentions that the trail is one of the most important features of a bicycle, which concerns the torque of the front wheel, explaining why a bicycles front wheel turns into the direction that the bike in leaning towards. These trails vary depending on the type of bike/bike riding. Lastly, he addresses the importance of a helmet when biking by showing that it increases the amount of time that it takes for you head to stop. The instructor was very effective in his speech which could be seen through his knowledge in biking and physics, clear organization and formulation of words and concepts, body language/hand gestures, and the use of real life examples as physical demonstrations.

 

Image result for physics of a bikeImage result for gyroscopic effect bicycle

Image result for biking helmet diagram

Arrangement/Outline for Project 2

Hi Guys my names Justin and for my evidence presentation I came across an article titled “Lane Splitting” on a website called “American Motorcyclist Association. I chose this article because I’ve noticed that a lot of people in california lane split as a result of the state being the only one in the US that does not directly prohibit it, so I became curious about the debate of whether or not it should be condoned.

 

So I was going down the article and it was basically saying that lane splitting makes it safer for motorcyclists to navigate. The article stood strong in its views which could be seen through the amount of evidence is uses such as statistics and research studies.

 

The article’s first strong point of evidence was a study made by The Hurt Report, which is the largest study of motorcycle crash causation, which said that “In 59.2 percent of motorcycle accidents, there was moderate or heavy traffic. Reducing a motorcyclist’s exposure to vehicles that are always accelerating and decelerating on congested roadways can be one way to reduce collisions.

 

Bouncing off of reducing collisions, the article also mentioned that UC Berkeley published a report in 2015 that concluded that motorcyclists who split lanes in heavy traffic are significantly less likely to be struck from behind by other motorists and are less likely to suffer injuries or fatality.

 

A Lot of people may think that lane splitting is dangerous because of the tight space that motorcyclists must clear, but the article addresses this by saying that the National Agenda for Motorcycle Safety states that, “A motorcycle’s narrow width can allow it to pass between lanes of stopped or slow-moving cars on roadways where the lanes are wide enough to offer an adequate gap, providing an escape route for motorcyclists who would otherwise be trapped or struck from behind and reducing crash frequency compared with staying within the lane and moving with other traffic. It offers a means of reducing congestion in addition to possible safety benefits, and is widely used in many other countries.”

 

Obviously a motorcycle shouldn’t be allowed to pass others at like 80mph in traffic that’s going 20, and the article addresses this by saying that the Motorcycle Industry Council supports state laws that allow lane splitting under reasonable restrictions, and that In 2016, California passed a law that authorized the state Highway Patrol to develop guidelines for legal lane splitting.

All in all, the American Motorcyclist Association had many sources of evidence to support its claim that lane splitting should be condoned in order to aid in safety as well as traffic congestion.

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