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About ajgartland22

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  1. will beef fuel the writing of more than 30 blogs for Marcus and Jeremy?? Stay tuned to find out
  2. Well its been real Physics C. Here I am, sitting here, writing my last blog post of high school (and maybe forever). This class has been a huge undertaking, but also something that I am glad I attempted. Although the work has been hard and I am far from even coming close to mastering some of these complex concepts, my time with Physics has been amazing and enlightening. It has opened me up to a totally new way of seeing things, and I cant wait until I can put what I've learned into use while I study to become an Architect. Without a doubt I will be taking Physics in College, but anything past mechanics I can just leave to the engineers (hey Skylor and Justin ;)) With that said, I know the knowledge I have gained in all aspects of Physics will forever help me through all professional (and maybe some personal) challenges. I just hope and pray that whatever physics god may be out there will here these last few simple requests: 1. May the downward force of all of my dorm supplies be much less than the maximum possible opposing force of that ratty box I dug out of my garage. 2. Also, when all that crap does come falling out of the bottom of the box, please make sure I'm not halfway up the stairs in front of a group of upperclassmen. 3. And if both of those things do end up happening, please oh please make sure the friction provided by that shirt that got under my feet from the box is enough to keep my feet static on the step. 4. And lastly, please keep any torque on my UCL below 70 ft-lbs - that would be great. But for real, I am so excited to see what the rest of this year of physics has in store for me and for the adventures that are bound to follow.
  3. this is THE best title out of every single blog post on this site
  4. Today we were hitting in the field house as part of our practice and I decided to focus on something I always knew happened, but never knew why. Every time a baseball bat rolls, it always does so in a circular fashion. This can be really annoying especially when it gets set down and then all of the sudden it starts randomly rolling off in a circle and depending on speed, always goes in a different path. The more I thought about it, the more I was amazed that it could be explained simply with physics. The bat is essentially a long rod with two ends of different diameters, and therefore, circumferences. Because there is no part of a bat that allows the top and bottom to rotate independently, the two different ends must rotate at the exact same angular velocity. But because they are different sizes, one rotation of one end will cover more ground than the single rotation of the other end. For an example, think of a bat with one end of the bat with a circumference of 5 cm and the other end with a circumference of 2 cm. If the whole bat is rolled along the ground so the ends spin at 1 revolution per second, that means the top of the bat is covering 5 cm every second, and the bottom is covering 2 cm every second. This change in distance traveled forces the bat to rotate lengthwise to accommodate for the difference because as we said before, neither end can speed up or slow down to even out the displacement of the unequal ends. Through a little physics, I was able to explain something that every baseball player has thought about at least once. And now I get to explain it to everyone on my team and watch them pretend like they care (even though this is really some cool stuff.)
  5. The past few days in Physics, a lot of people have been talking about space, time, dimension and how all three of those things are very fluid in reality. Since the tiny lecture we had on it last week, I have been thinking about the endless possibilities that could arise if these notions become more widely accepted and studied. One thing that really got me interested was the theory of alternate realities. The simple fact that there are endless universes, every one playing out every single possibility of every decision you ever made. For each one of these realities, if they do exist, there must be some sort of physics guiding the objects of that universe and whether they would be like ours or completely different, who knows. Also, if there are proven to be multiple universes, how may we use physics to interact with, or even influence a parallel universe? The last big question I had was: what would other realities of our world look like if some of the smartest men in our history interpreted the world in a different way, or didn't make the same groundbreaking discoveries. Would we have the technology we have today? Or would it be something more serious, like the total change of the very Physics principals we study currently. To me, these are very thought provoking questions that I hope you may enjoy thinking about, and maybe even answering. Who knows, maybe one day we will live to see these very questions answered by the brightest minds of our time. And how will those discoveries impact our reality?
  6. Its really interesting to think of the concepts of physics and how zero gravity makes all these relationships so pure
  7. Really fun game I never go to play! Looks really cool
  8. it seems simple when you watch it but its cool to see how much one needs to know about every aspect of every club
  9. In spite of the title above, this blog post will NOT be about the unfortunate event in which your trusty spoon just cannot take the weight of all that cereal. This is going to be about my unfortunate brother, Chad, who is affectionately known as Spoonhead (or Spoon for short) due to the fact that his small head bears an uncanny resemblance to that of a spoon. Last night, Chad started in his 22nd Varsity baseball game (hes a sophomore) but only lasted about 3 innings because he went down with an ankle injury running to first on a routine ground ball. Around 10:00 last night, we found out he broke both his tibia and fibula (both leg bones) right above his ankle. Although the injury was gruesome, the way it happened is interesting when analyzed from a physics perspective. At the moment the injury occurred, Chad's foot was impacting the bag at a velocity vector which was not perpendicular to the face of the base. (That is a big no-no if you want to avoid injury crossing the base). When the foot impacted the base, the force that the base exerted on the foot made it roll over itself as Chad's momentum from his body weight propelled his legs forward even after he stopped using his muscles to voluntarily move his legs. This rotation of the ankle created a torque that was way too much for his lower leg/ ankle to handle and caused both bones to snap suddenly. Thankfully, it was a quick, clean break and no surgery was required. Get well bro.
  10. Hey still a great blog post don't listen to that man ^ the physics are still pretty cool
  11. HBP- Hit By Pitch is a common abbreviation seen in every stat line in baseball. It is something that looks a lot less painful than it actually is- especially in the majors when some guys just shrug off 90+ mph fastballs. One interesting thing about getting hit by a pitch (which I have some good experience with) is the fact that there really is a wide range of pain associated with the event. There are many factors that effect the pain factor for the batter. Things such as location, pitch type, velocity (obviously) and most importantly, flight of the ball after contact, dictate how bad the experience is for the batter. Since I was young, and before I knew a lot about physics, I inherently knew to cringe every time a guy got nailed and the ball just dropped at his feet instead of whizzing by because of a deflection. Now it makes more sense... using simply the equation for momentum, one can see why HBPs that stop the pitch are more painful. When the ball is stopped in its tracks, the body is imposing a massive impulse force on the ball, totally matching the momentum of the pitch (which trust me, there's a lot of momentum). When the ball merely deflects off a batter and continues with some velocity past the player, the force exerted on the ball is less and therefore the force the ball exerted on the person was less. This observation aside, there have recently been a push towards small, form fitting elbow guards worn by batters. In a batting stance, the guard protects the elbow that is almost hanging over the plate, so in the likely event that the batter is hit there, the energy from the ball will be dissipated through the guard, and not the elbow. Another pro of the small, form fitting guard is the fact that there is much less surface area perpendicular to the flight of the ball, which reduces direct hits, and therefore reduces the amount of force felt by the guard and elbow. And for your viewing pleasure, here is a player charging the mound because of a fastball he caught up near the head And if anyone needs any ideas for blog posts... I think you should go to 3:00 on this next video and analyze Jose Bautista's glasses, helmet and face as a system with Roughned Odor's fist and see if the system conserves energy.
  12. My brother did drop one at a range once... talk about seeing in slow motion- i thought I was going to lose a leg
  13. A common part of baseball is seen almost every pitch when the catcher moves his glove slightly when he catches the ball to try and convince the umpire the pitch was actually a strike, when really it was a ball. This is called framing, and when one really looks at the process, it is easy to see how strong and skilled a catcher must be to execute it. One of the best in the game at this is Yadier Molina. In the video below, take a look at how Molina totally redirects the tremendous force of a ball travelling over 80 mph and sinking down below the zone. The way Molina "sticks" the pitch on the corner of the zone led to this pitch being a strike, even though it is very clear it should have been a ball. He moves his glove up while barely moving backwards, meaning he absorbed and counteracted the downward angled force of the ball in a split second, and made it appear that he actually caught the ball at a spot above where he actually didnt. When one thinks about the serious force behind a major league pitch, Yadier's tremendous strength becomes even more apparent, as he appears to move his glove at will, even though it is being impacted by a projectile travelling at over 80 mph.
  14. Over the break, I took a 5 day cruise into the Gulf of Mexico. Although there wasn't any internet connection for me to have Mr. Fullerton's videos grace my presence (I know what I'm going to be doing all day today), I was still thinking about physics the entire cruise. One particular event that made me use my physics knowledge took place when we were walking down the pier in Progreso, Mexico. Another Carnival cruise ship was leaving the port as we were about to get on our ship. The boat backed away from the dock and once it was out in the middle of the harbor, it began to turn in place. One thing that many don't know about large ships is the fact that they have large thrusters that exert a force perpendicular to the side of the boat, making lateral movements such as docking maneuvers much easier and safer. Another cool use for the thrusters is turning the ship in tight areas. There are 2 pairs of these thrusters, each pair on opposite ends of the boat and each thruster of the pair facing opposite directions. By using the thrusters on opposite sides and ends (two thrusters that are "diagonal" to each other), the captain can turn the ship on an axis to, in this case, point the ship in the direction of the opening of the harbor. On this particular day, there was a very strong wind blowing in from the ocean and while the boat was turning, there was no force vector produced by the thrusters that pushed the ship away from shore, so the wind was allowed to accelerate the ship back towards the pier. After the turn was complete, the ship was traveling with a small velocity backwards. Despite being a small velocity, the fact that a average cruise ship can weigh 60,000 tons automatically means any velocity will translate into an insane amount of momentum. This huge momentum was put on display as the main engines were fired up because even though the black smoke was pouring out of the smokestack, the boat continued to travel backwards for a few long seconds before finally the force of the engines met, and eventually overcame the momentum caused by the wind. This application of a relatively simple concept is shown to have vital importance because without a sound knowledge of the relationships of the forces around him, the captain could have easily put the 3,000+ passenger's lives in extreme danger. It is really cool to think about the giant forces one must harness in order to make a cruise a success.
  15. (49 short days until game #1) Today was a very eventful day in the baseball world. Spring training started and Hannah and Derek Jeter announced the birth of their first child. To celebrate both, I thought I would break down the physics behind two of Derek Jeter's most iconic defensive plays. The first play, commonly called the "jump-throw" is known across the world by almost any baseball player or fan. It starts with a sharply hit ground ball towards the hole between Jeter and third base. Looking at simple kinematics- based relationships, it is a large feat in itself for Jeter to be able to intercept that ball by moving as far and as fast as he did. Next, he calculated the exact flight of the ball as it hopped into his glove, and then with the full momentum of his body taking him away from first base, unleashed a powerful, incredibly accurate throw that beat the runner and ended the inning. Critics say that the only reason that play was made was because Jeter didn't have the speed to get to balls hit away from him, but nobody can deny the fact that the throw, made perfectly, despite the fact he was traveling at a constant speed away from his target and being accelerated back to earth by gravity, is one of the greatest of all time. Another iconic Jeter play, made in a pivotal playoff game against the Oakland A's shows just how good of a physicist Jeter was. The play began as a defensive error by the right fielder. He made an awful throw trying to get the tying run out at the plate. He missed the 1st baseman who was supposed to relay the throw home, and instead sent it sailing into the grass by the 1st base dugout. All of the sudden, Derek Jeter came streaking across the field, and on a full sprint fielded and backhand flipped the ball to the cathcer, Jorge Posada, who nailed Giambi with a quick swipe tag to preserve a 1-0 Yankees lead. The physics come in when Jeter released the ball. Travelling at over 15 mph, Jeter knew exactly what vertical and horizontal angle to launch the ball at in order for it to be delivered to Posada to enable a smooth tag. In the video, one can clearly see how the ball seems to curve as it is being delivered to Posada. This is because the ball is moving in all 3 directions at once. It is moving forward with the force of Jeter's "push", sideways with the constant velocity supplied by the sprinting body, and downwards due to gravity. By correctly judging all three of these factors and many more, Derek Jeter was once again able to make himself into baseball legend with the flash of his glove and the flick of his wrist. Here is a video of some of Jeter's best defensive plays. It starts off with The Flip and his Jump-throw is at 2:44.