Friday, January 18, 2019

Forces

Forces 2 carts connected by string By: Guy Vandegrift


Summary: A force is a push or a pull, on an object that makes it move in various different ways. Forces are one of the main parts of Isaac Newton's three laws of motion, which include the law of inertia, F=MA, and for every action there is an equal or opposite reaction. The law of inertia is that if something is in motion, it will want to stay in motion, and if something is at rest it will want to stay at rest. F=MA, is a law that says the more mass something has the larger the force must be. Newton's third law states that if an action occurs there are two reactions, one that is equal, and one is opposite.

SP4: Analyzing and interpreting data
While studying how forces work and interact with each other, we used models on an online service, while we were studying the online service we used the data that we got to make various inferences on how force can effect a single object. We put the data that we gathered into a small graph showing the forces and how far movement was.

XCC Energy and Matter:
When force is applied to a piece of matter, a certain amount of energy must be exerted. The more amount of energy that is put behind a force, there will be a larger amount of newtons in the force. Depending on the mass of the object and the acceleration it is at, the more or less energy a person would have to more or less energy into the force.

Friday, January 11, 2019

Self-Driving Cars, are they the Future?

MWilkinson1004
Mrs. Garcia
Science 8B
01/11/19

Self Driving Cars, are they the Future?

Technology has been advancing rapidly for the past century, with the invention of the first computer to rockets going to the moon, what is next on the agenda for humanity to invent? The next step is self driving cars, a piece of technology that allows transportation without the error of human judgement and various impediments of sight. It allows people to multitask on the road, which could overall improved attitude, and efficiency in the workplace. Self-Driving cars have a lot of benefits to them,  how do all of the features in the cars work, and how are they made?

Human errors are the main cause for car crashes, 1.25 million people die from car crashes every year, with the average driver getting in an accident about every 500,000 miles. Self-driving cars could eliminate human error from the equation, limiting the amount of crashes that happen every year. In the article How Driver less Cars Will Work by Jamie Page Deaton & Kristen Hall-Geisler for How Stuff Works it was said that “Google has had a fleet of driver less cars since 2009, and they've driven over a half a million miles (804,672 kilometers) without a crash.”  Meaning that the cars that google made have driven for a longer distance without getting into a crash, than a human would have. Human Error is usually within the calculations they have to make when driving, because computers are great at  making calculations quickly, it makes them much less likely to get into a car crash than a human would be. Self-driving cars not only make it so that the road is safer for those who can drive, but also for those who cannot.

People who have trouble reacting to different situations and people who never learned how to drive, can use self-driving cars to be able to get to places faster than before, furthermore people who don’t have good eyesight, and various other disabilities can get to the places they need to without having get behind the wheel. When people use self driving cars, they are not looking at the road themselves, that’s the cars job, and the car’s sensors is not impeded by things like a disability or environment condition like when it is night time. In the article PUNY HUMANS STILL SEE THE WORLD BETTER THAN SELF-DRIVING CARS by Aarian Marshall said that “Vehicle-to-vehicle communications could help autonomous vehicles do even better. Technologies like dedicated short-range radio or 5G cellular networks (that one's on the way) could help networks of cars talk about what’s happening on the road.” which means that people who have trouble communicating to others, which is harder on the road, don’t have to do that making the drive safer. Even if it will help people with disabilities, the technology is not perfect, and human eyesight is still better than most driver less cars that are on the road at this point in time.

The technology is used to help driver less cars drive is not perfect in any way shape or form, human eyesight is much more reliable at this point in time for people to drive on the road. While driver less cars are not affected by impairments like the darkness of night, they cannot see various signs and other specific details and react to them, they also have to get the timing perfect when driving so when on a busy crossroads, a person in a self driving car will be waiting for a while. In the article Puny Humans Still See The World Better Than Self-Driving Cars by Aarian Marshall it was said “Indeed, competent drivers are still better than rolling computers in key areas. This is partly because of the limitations of these cars' sensors.” While the technology is not able to keep up with the eyes of competent drivers, they will able able to soon. The technology used to make self-driving cars is still relatively new. Meaning that in the future self-driving cars will be able to keep of with human drivers.

One of the most important things that people will be able to get out of self-driving cars, is that they won’t have to pay attention to the road, meaning they could divert their attention to things like work, or relaxation. In the article Pros and Cons of a Driver less Future by Tony Borroz, the author made a statement: “While being taken from here to there in a driver less car, you can do anything you want. Eat, sleep, work, chat with relatives – commute time is no longer downtime.” When people have more time to relax before work, it allows them to feel more energized, and have better work ethic. Students and younger children that need a lot more sleep can get more, which improves their health. How does the case for self-driving cars stand, even with all of the current opposition to the idea of them ruling the streets instead of humans.

Self-driving cars would be great in the future from now, there are many pros to not having to drive yourself anywhere, while also not having to pay every single time you go to a place. Not only do self driving cars remove the possibility of crashes through human error, they also allow people who have disabilities to get to various places without help from other people. Some people say that human eyes are better than the sensors of the self-driving car, but that is only right now; in the future self-driving cars will have the capability to see better than a well-trained driver. It will also improve the mood of people who drive a lot because they won’t have to be focusing on the road, and on the wheel. Self-driving cars will improve exponentially in the future, just how long will it be before they take the road instead of human drivers?