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krdavis18

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krdavis18 last won the day on November 5

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About krdavis18

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  1. The Wizard of Oz

    Over the weekend, the movie the Wizard of Oz was playing on TV and my mother was reminiscing about how she was so mesmerized by the colorful movie when she first saw it. This inspired me to do some more research on what is commonly (but mistakenly) thought of as the first movie made in color and how it was filmed. The Wizard of Oz was filmed in Technicolor, which was also the name of a corporation developed by two physics professors from MIT. An article from the MIT Technology Review titled The Advent of Technicolor says that in the initial model of the Technicolor camera, it "split the light from a scene to simultaneously expose two adjacent frames on the negative, one behind a red filter and the other behind a green filter. As the film ran through a projector, separate beams of light passed through the identical frames; focused by a prism, they combined into a single color image on the screen." This method ended up being pretty difficult to perfect and inefficient, however it touches on the spectrum of light and the effect on light after passing through a prism. I enjoyed learning about this in physics last year and I hope to learn more about this process in the future. I also included a video that touches on how a modern digital camera works as well as how the human eye works. I can't believe how much I learned and I can't wait to learn more!
  2. More Weather... Lightning!

    I think lightning is so beautiful when it lights up the whole sky in fractures.
  3. Elevators are Evil

    I agree that elevators are evil. I had a dream once that I was in free fall inside an elevator. It was terrifying.
  4. A Box of Minions

    I’m so impressed by how this turned out! I loved the video too.
  5. Polar Bear Fun

    Wow I never knew that before.
  6. Interesting Conversations

    I can say with absolute certainty that more than one fire extinguisher would be required.
  7. Blog Post Checkpoint

    As we approach the end of the first quarter, it was a bit of a scramble to get all of my blog posts done. First quarter is always rough for me because it is very busy and hectic; nonetheless, I neglected doing blog posts and held off until the last moment possible to complete them. I regret this decision now that it has come to the final hour. I think it would greatly benefit me to try to work on one blog post each weekend so that I can stay on track and not have to cram at the very end. Over the course of the week, I can develop ideas about what the post should be about and over the weekend I can blog about it and post it. This isn't a new idea that I am suddenly coming up with to solve all my problems. The idea had already been presented to me, and I failed to follow through with it. Going into the second quarter, it would be a large help to have this routine down so that I can confidently complete all the necessary posts for physics class.
  8. Credit Card Physics

    My weekends are usually spent working at Wegmans where people most often pay using a credit card. The new chip readers don’t always work and people always wish they could just go back to the old method of swiping. Interestingly enough, there is a significant amount of physics behind the simple swipe payment that I thought it might be interesting to explore. To get a basic understanding of how a credit card works, you can think of the black strip on the back of the card as a strip of magnets placed in a specific pattern. When you swipe the card, the credit card machine’s coil of wires causes a change in the magnetic field. This is called electromagnetic induction. The change in magnetic field induces a voltage that creates a current that is used to signal your account information to the machine. I never knew that all of this went on when someone swiped their card at Wegmans! I hope to learn more about this in the future when we start learning electricity and magnetism. For a more in-depth explanation of how a credit card works, visit this website: http://pages.vassar.edu/ltt/?p=965
  9. Flight Physics

    Flight is a magnificent natural ability of birds and what seems like a tremendous accomplishment for man-made aircraft's that average at a weight of over 300 tons. So I thought I would explore more into this amazing ability and the physics behind it. Here is what I learned. In order to fly, a bird or a plane must overcome both the force of gravity and drag forces as it is moving through the air. The force that opposes weight is known as lift and the force that opposes drag is called thrust. Lift is generated from the shape of the wings that cause air to move faster over the top of the wings and slower underneath. This means that there is lower air pressure above the wings and higher air pressure underneath them. The force from the pressure difference which is called the life force, exceeds the weight of the bird and the bird is able to fly. Here is an image demonstrating what is called the Bernoulli effect. When you look into an amount of lift that a pair of wings can produce, you have to take in to consideration factors such as wing size, air speed, air density, and the angle of the wings with respect to the direction of the flight. A wings lift is directly proportional to the surface area of the wing, so a wing twice as large can carry twice as much weight. To simplify the relationship between lift and airspeed and air density, it can be said that if a bird flies twice as fast, it can generate four times as much lift. And if a plane flies where the air density is a quarter of the density of the air at sea level, then it must fly twice as fast to maintain the same amount of lift. Lastly, lift increases as angle of attack increases, but only up to a certain critical angle. The angle of attack is the angle between the wing and the direction of the oncoming wind. Past that critical angle, stall occurs as the air stops flowing smoothly over the top surface and instead peels away, leaving a turbulent wake. Prettu interesting!! To read more on this topic and where I found most of my information, check out this presentation:
  10. What does Gary Sanchez Feel When Catching?

    Now I understand why catchers gloves are typically so much thicker. That's got to hurt after a while.
  11. Physics of Angry Birds

    If only playing Angry Birds could've helped me study for the kinematics physics test! Very creative
  12. Do billiard balls hurt?

    I hope your foot is ok! I'll have to keep this in mind the next time I play pool with my brother!
  13. Stranger Things

    Stranger Things is a popular show on Netflix set in the 80's following the lives of three young boys as they try to rescue their friend Will from "the upside down." Here is a clip of the boys science teacher explaining it a little: Throughout the show, the upside down is described as a parallel universe, or an alternate dimension. However, as you dive deeper into the physics behind these concepts, there is perhaps a better way to describe the upside down. According to the following video, the upside down could be better described as a parallel reality. The video also dives into some crazy physics that explains how "the upside down" from stranger things could really exist. You can dive a lot deeper into the talk of other dimensions and universes and time travel and string theory, and the list goes on. But for now, I can appreciate the somewhat simplistic explanation that this video provides. It's cool to analyze the science behind Stranger Things and dive into what's realistic about parallel realities. But I hope that demogorgon's are in fact fiction.
  14. Mr. Guercio's Brick

    Many times during our class, our physics teacher, Mr. Fullerton, has said how he would love to sit in on one of Mr. Guercio's classes one day because it seems like it would be really interesting. I found this humorous, but I never expected that physics would make its way into my English classroom in a completely different way. As I walked into Mr. Guercio's room the other day, the door started slowly closing on me despite the fact that it had a brick in front of it being used for a doorstop. My first instinct was to suggest that this was caused by the fact that the brick was hollow and not heavy enough to stop the door. However upon speaking to Mr. Guercio, I realized that the door closing on me was caused by a different problem. Mr. Guercio said that the brick used to be part of a wall in the school until they expanded the building. He said that he had found the brick when he started teaching at the school and had been using it as a doorstop for a long time. So it was not the brick that was too light, but that there was not enough friction. Since it had been used for so long as a doorstop, the brick had matted down the carpet and there was no longer enough friction between the floor and the brick to prevent the brick from moving. Thus, it was no longer an effective door stop. Although this is a very basic application of physics in the real world, it was interesting to find that there is always a different way to look at a physics problem. Sometimes gaining new information from a different perspective can make all the difference. Unfortunately for Mr. Guercio, his door might stay shut for a while until he can find what he called "a carpet rake" to make the brick work again.
  15. The Terminal Velocity of a Kitty

    Wow! It was really cool to learn about this amazing ability of our furry friends!

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