CharlieEckert
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They are also performing work to over come gravity. This takes energy which is in joules, and that energy comes from any fat they have!!!!
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Is this how a boomerang works? would be hilarious if the ball curved around and hit the pitcher. but that would be a really big curve:wave)
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After watching other cataplats that Friday, I realized that if we had used springs like your group, we could have launch much further. For one thing bungees generally have a maximum amount you can stretch them unlike spring which you can usually keep stretching.
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Just remember that while you may decrease air resistance, you will also be susceptible to rapid heat loss from your head. You now have less hair which help to hold in heat. So you are now more likely to get ammonia from the cold!!!!
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Interesting enough, on the "third" hit he puts spin on which prevents the shortstop from catching it.
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Well I'm really starting to run out idea for creative content so ill be writing about the eraser i just dropped out boredom. The eraser weighs about 1 gram and is dropped from the height of 1 m. The potential energy eraser is given by mgh and = .01 J. Neglecting air resistance, the eraser has a final velocity of about 4.47 m/s. This gives it a momentum of .00447 kg m/s downward since momentum = v * m. Neglecting the fact that the eraser bounces a little, what happens to the momentum in the downward direction after the eraser hits the floor. Well the floor is so massive that the floor downward movement is negligible!!! Yah quality physics topics!!!
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I concur with Joe. Air Resistance would significantly slow down the golf ball. Although I still wouldn't want to be hit with the golf ball
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The Physics of how i time traveled into the Future
CharlieEckert posted a blog entry in Blog CharlieEckert
The Physics of how i time traveled into the Future and therefore these blogs posts aren't really late technically kinda probably. Well um these blogs posts were due last night, which I didn't realize, also i thought they were just extra credit. So Ill discuss how I could have potentially traveled into the future which caused me to submit these late. As we learned last year E = mC^2. As the speed of a particle increases in speed, the mass increases. But while the mass increases, time will actually slow down to prevent a particle from exceeding the speed of light. Basically this means that if I had been traveling at near the speed of light this weekend my watch could tell me that's its still Saturday because time had progressed more slowly for me. I also could have spent the weekend indulging in my favorite pastime: orbiting a Super Massive Black Hole!!! What happens is that space-time will bend because of differences in gravity and velocity. Both of those examples would result in me traveling forward in time and missing the deadline! -
Ever heard of the Superconducting Super Collider before? I certainly hadn't. In 1983, plans for the Superconducting Super Collider were being developed by the U.S. Department of Energy. Its planned ring circumference was 87.1 kilometers with an energy of 20 TeV per beam of protons – numbers that surpasses those of the now operational Large Hadron Collider by a factor of three (27 kilometer with an energy of 7TeV per beam). The project initial goal was to detect the Higgs Boson. The project began construction in 1991 with a budget of $4.4 billion. In 1993 the project was scrapped when cost projection rose to $12 billion. It's Interesting to think about what would be different if this project had been completed. The Higgs Boson would have likely been discovered years ago Since the SSC had a head start on the LHC by several years. In addition, the SSC could harness almost three times more energy lending more potential for discoveries. Instead of contributing to science and our understanding of the universe, the SSC sits abandoned with 22.5 km of tunnel and 2.2 billion dollars spent on it before the project was cut. http://www.amusingplanet.com/2010/12/abandoned-remains-of-superconducting.html
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International Workshop on Future Linear Colliders
CharlieEckert posted a blog entry in Blog CharlieEckert
Two weeks ago on October 22, University of Texas at Arlington hosted a five day workshop devoted to the future of high energy linear electron-positron collider. At this workshop the future of two projects were discussed,the International Linear Collider(ILC) and the Compact Linear Collider(CLIC). The ILC is planned to have a collision energy of 500 GeV. The host country of the ILC has not yet been selected. The CLC is projected to have collision energy of 3TeV. The CLC (if built) will be located at CERN. Both projects are still in the design stage, so it will likely be many years before either one is built. -
Jason Padgett sees the world in Math equations!
CharlieEckert posted a blog entry in Blog CharlieEckert
Jason Padgett has Acquired Savant Syndrome. 10 years ago he was beaten and kicked in the head by some muggers after his jacket. While recovering in the hospital he became obsessed with mathematical equations. Apparently the damage to his head allows him to view everything he sees as a Math equation! Padgett turns these formulas into intricate diagrams called fractals. Prior to his accident Padgett was a college drop out and had never taken a college level math class before. An example of his work his below. http://www.huffingtonpost.com/2012/04/30/college-dropout-jason-pad_n_1464835.html More of his work can be viewed here http://fineartamerica.com/profiles/jason-padgett.html -
Keeping with the subject of physics of swimming, I'll be discusing why breathing right after the walls is a very bad idea. When you enter the water after your dive or when you push off the wall after your turn, you should be in the streamline postion as shown in the picture. This position minimize the surface area exposed in the direction you are moving reducing the drag force. When you breathe while swimming, you pick your head up which causes the rest of your body to sink. This increases the surface area exposed and increases the drag force. The reasion breathing off walls and off your start is bad, is becuase you are going your fastest off your walls/start. And since drag force is related to speed, a bigger drag force will be applied therefore you will slow down more then if you breathed in the middle of the pool!
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Keeping with the subject of physics of swimming, I'll be discusing why breathing right after the walls is a very bad idea. When you enter the water after your dive or when you push off the wall after your turn, you should be in the streamline postion as shown in the picture. This position minimize the surface area exposed in the direction you are moving reducing the drag force. When you breathe while swimming, you pick your head up which causes the rest of your body to sink. This increases the surface area exposed and increases the drag force. The reasion breathing off walls and off your start is bad, is becuase you are going your fastest off your walls/start. And since drag force is related to speed, a bigger drag force will be applied therefore you will slow down more then if you breathed in the middle of the pool!
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As I talked about in my last post, drag force is a huge factor in limiting performace in the pool. So how can we combat this problem? Well for dedicated swimmers, shaving can make the difference. Since many races come down to fractions of seconds, any hair you can cut off can mean the difference bewteen first and second! Optimizing the distance you travel in the air when you dive of the block can make or break a race. As stated in my blog post, water is over 700 times denser and will offer far more reistance. Therefore the farther you can travel in the air, the more time you can cut off!
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In Swimming, reducing drag is a huge factor in decreasing your time and increasing performace. Water is more than 700 times denser and 55 times more viscous than air. There are three main types of drag that act on a swimmer: friction, wave, and pressure drag. Frictional drag is the result of the interaction between the swimmer’s body and the water molecules and serves to slow down the swimmer. However, this drag also propels the swimmer through the water (Newton’s 3rd law). As the speed of the swimmer increases, pressure drag becomes a factor. The faster the swimmer is moving, there is increased pressure on the front region of the body (the head). This increase causes a pressure difference between the two ends of the body and results in turbulence. A third form of drag, wave drag, occurs when the swimmer or any object moves through the surface of a liquid. The pressure around the swimmer’s body increases because of the different water velocities, which result in waves. This results in a lot of drag slowing you down when your swimming.
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I find an amazingly informative video on the Cern's LHC. It covers basics particles physics with some other things. The best part, Its a rap!!! It was interesting to see the video theorizing the discovery of the Boson Higgs particle. The video - being made in 2008 - is abit behind with the times as the Higgs particle has recently been detected by experiments done with the LHC.
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Well this is a little bit late, but I had some problems getting this posted. Also physics teaches us that time is relative so its all good. I guess I should start with why I'm taking this class. I have always enjoyed puzzles and problem solving and I have no doubt that there won't be a shortage of those in this class! Last year it felt like we only touch the surface of many topic in Physics B, so I'm excited to dive deeper into the more complicated stuff. I know for certain that I want to pursue a career in math and science - possibly engineering- so this class will be great to have taken.