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ally_vanacker

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ally_vanacker last won the day on November 6 2014

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About ally_vanacker

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  • Birthday 02/16/1998

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  1. We should continue particle collider research funding because of its positive contributions to society. Particle research has had a huge impact on the medical world. by creating a device that can accelerate protons to the highest of speeds, they can use this to view the human brain through MRIs and do cancer research. Also, projects like the AMS project which detects unkown and anitmatter can allow people to discover new parts of outer space and aid in new space research and technology. another application of this research is in biomedical labs to explore the structure of protiens and create medicine that can cure disease. This particle collision research has had an overall impact on america and the advancement of technology and knowledge.
  2. On the show The Big Bang Theory, Sheldon goes to a Halloween party and dresses as the Doppler effect. he explains his costume to people by giving them the definition "its the apparent change in the frequency of a wave caused by the relative motion between the source of the wave and the observer". throughout the episode he also makes the noise of a car going by when people try to guess what his costume is. This noise he makes is a clear example of the Doppler effect because it sounds louder in the beginning and then fades away. This occurs when a siren of a police car or fire truck passes due to the Doppler effect.
  3. Knowing physics can help you improve your work out! I go to the gym a lot after school and everyone is always on the treadmills and a lot of people just walk with the incline of the treadmill up high. Some may think walking is a pretty easy work out and wont do much, but because of physics, if you add an incline or walk up a hill you actually are doing a lot of work. as you walk up a hill, the gravity pulling you towards earth's surface goes up which forces a person to do more work to walk up the incline. Because you are doing work against gravity you are burning more calories and exerting more energy. Another way physics can help you on a treadmill is by changing the frequency of your steps. if you do more steps in a shorter amount of time the frequency increases and the amount of energy your using and burning in that time also increase. Physics can help you anywhere.
  4. While driving on the expressway I have passed by many police officers and like everyone around me, slowed down the second I realized it. The radar guns police use, use physics to help find out if the driver is going too fast. As the police officer aims the radar gun at cars passing by, the gun sends out radio waves toward the car. Then, the radio waves hit the car and bounce back toward the gun. The gun then measures the frequency of the returning waves, so the faster you are going toward the police radar gun, the higher frequency the waves will be. This concept uses a lot of physics including radio waves, frequency and also the Doppler effect. Since the car is moving toward the gun, the frequency of the returning radio waves will be much higher.
  5. While researching and learning about the Doppler effect I came across the idea some people have that there is an inverse Doppler effect. Researchers from Britain did an experiment in the early 2000's trying to prove that the Doppler effect could be reversed. They did this by creating a pulse that acted like a siren and then using radio frequency to see the waves. This was done on structure called a nonlinear transmission line that used magnetics and created a new type of wave. They observed that instead of the waves getting looser like the Doppler effect shows, the waves actually got tighter and frequency increased. They claimed this proved that there may be an inverse Doppler effect. I don't believe that in real life the inverse Doppler effect can really be shown but the Doppler effect is seen everyday.
  6. Sound waves can help whales hear each other and communicate under water. Since the medium of these waves is water, the sound waves can travel much faster than humans talking on land. Medium is the main thing that can affect wave speed so whales are able to communicate quickly and other animals underwater also can too. Also, as the depth of the ocean increases as the whale goes further down the water gets colder which causes the speed to decrease. Temperature and pressure changing throughout the ocean can impact the sound waves of whales. A special case for these sound waves is the sound channel. the waves are able to travel thousands of miles and people have used technology to detect that they can hear sounds of whales many kilometers away in the ocean. Animals underwater must have a lot more fun communicating because the medium they are in!
  7. Everyone loves candy and physics can make the candy eating experience longer! Physicists did a study with hard candy and found that the candy dissolves linearly. This means that the rate in which it dissolves stays constant instead of accelerating at any point. Therefore, if you keep each candy in your mouth without biting on it, each piece should last about twenty five minutes. This shocked me cause one tiny skittle doesn't feel right to take almost 30 minutes to eat. From this experiment, I think physics can answer many real life questions but I doubt I'll take that long to eat candy at any time in my life!
  8. I recently found out that it's proven that you can't throw your phone in the air without it flipping the short way at some point because of physics. I've never learned about this concept before but I did some research on the always trustworthy google and got an answer on why this is. The axis theorems in physics force this to happen because of the difference in inertia from when the phone is the long compared to the short. Because you are not flipping the phone perfectly along the axis it deviates and will go to the other axis. This is also true with other objects like books. I looked up the math and equations to figure all this out and it seems like a very complex topic but also makes a lot of sense with the different axis of an object and the way the inertia will cause it to respond.
  9. This quarter I put in place the not strategy of drawing pictures and being more creative while note taking rather than just getting through it and not getting much out of it. I enjoy drawing and making little doodles so this seemed like a fun idea when it was introduced to me in class. The best part about it was it honestly did help. I had fun making it look good which made me spend more time focusing on physics and watching the video in greater detail. Before I did this it was easy to just skim through the video and jot down what was written on the screen but taking notes with pictures forced me to think harder about the concept.
  10. One day I took my little cousin to the zoo and while we were in the monkey house getting out of the snow he saw the big yellow circle and wanted to throw a coin in it to see what it did. While it spun around all I could think about was physics class and how we learned about centripetal acceleration. When we first dropped the coin it went slowly around in a circle and then it kept speeding up as the radius got smaller. This proves the equation of v^2/r to be very accurate because by the time the coin was about to fall in to the dark center it was moving so fast you couldn't even tell what shape it was. From this experience the idea of centripetal acceleration was put into real life for me.
  11. I recently passed my road tests and have had many experiences while driving with the physics we have talked about in class. For example, when I took my test it was snowing and the roads were very icy. This made it harder to drive because the conditions of the road created less friction on the tires making it harder to stop. Another thing that has proven to be true while driving is Newton's third law which is that every action has an equal and opposite reaction. I'm nothing close to being a good driver and many people have asked me how I even passed my road test due to the fact that my moms mini van has been subject to Newton's third law. I've hit many curbs and piles of snow but they also hit me back and have left a few new dents in the car!
  12. Right Kylee! That class related to physics so much
  13. ally_vanacker

    Catapults

    I'm glad the project wasn't too stressful for you and showed lots of physics!
  14. I saw a stuffed animal bunny duh
  15. I have never been to Disney World before and if I ever go I will now think about all the physics of the rollercoasters! Thanks Lia

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