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
Nuclear energy has been used since the 1950s. However all nuclear power plants have been fission reactors. Fission results from bombarding uranium or other large atoms with neutrons. The atom then breaks apart releasing energy and more neutrons leading to a chain reaction. Nuclear fusion however has never been used for energy. Fusion is when two light atomic nuclei fuse to form a heavier nucleus, vast amounts of energy is produced comes from binding energy due to the strong nuclear force. Fusion
So this morning I went out to warm up my car for practice, only to discover that my car door was frozen shut. Now I know what your thinking, why don’t you just pull harder, well I did but unfortunately the door handle was poorly designed. As shown in the picture below, one corner of the metal holding the handle on is detached.
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In order to open the door, the handle is pulled up and out at an angle. Under normal conditions, i.e., the door not being frozen shut
The navy is developing a prototype for an Electromagnetic Rail Gun. The Rail Gun would be use massive magnetic fields to accelerate a projectile at over 5000 miles per hour. The projectiles would have so much kinetic energy that warheads would become unnecessary components to the projectile. The projectile would be able to devastate a bunker just by making impact with it, making explosives unnecessary. Clearly such a weapon would be extremely useful in a wartime situation.
It seems the search to prove the existence of the elusive Dark Matter might soon come to a close. A Minnesota mine, half a mile under ground, seems to have detected the existence of Dark Matter. For those of you who don't what Dark Matter is, I'll give a brief explanation. The ordinary matter that we can visibly see makes up an estimated 15.5% of the universe. Planets, Stars and pretty much everything else in space is made up of ordinary matter. However 84.5% of the universe's matter is estimate
Since I’ve already done a blog on dark matter I thought why not do one on dark energy as well! Like dark matter, the existence of dark matter has yet to be proven. Despite this, dark energy is theorized to ‘exist’ in very large quantities. Current models have dark energy occupying 68.3% of the universe. So if we can’t prove dark energy exists why do physicists believe it exists? Well because it’s the only thing that would explain why the universe is accelerating. We know from red shift that the
I figured I would finish my blog posts with a reflection of how physics went this year. At the beginning of the year, Mr. Fullerton introduced us to integrals. I had absolutely no idea what how to do them since we hadn’t covered it in math yet. Fortunately by the time they finally came up on a test, we had gotten to them and calc and I finally understood them. Overall the calculus included in the course was fairly basic and wasn’t very hard.
The independent units were definitely something new
Well, I thought of yet another aspect of swimming to analyze for my blogs posts!!! Sometimes at practice we use these bungee or stretch cords to work on resistance training. The premise is simple, strap one end around your self, and the around the block at the end of the lanes. The bungee cords act just like a spring in that F = -Kx, the further the displacement the larger the force. As you get closer and closer to the other end of the pool, the force pulling you back becomes larger and larger.
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
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
I found an interesting article about how nuclear fallout has aided in studies on brain development. Nuclear fallout introduced small amounts of carbon 14 into our atmosphere. When our cells divide, they incorporate carbon from the environment. So the carbon 14 released from nuclear bombs eventually makes it way into the human body. This means that carbon 14 can be used to measure the age of cells. A team at the Karolinska Institute used this to show that new neurons were produced in a small part
Recently physicists at the Ludwig-Maximilians University Munich and the Max Planck Institute of Quantum Optics in Germany have registered a temperature a “few billionths of a Kelvin” below absolute-zero.
Now you’re probably thinking what???
If the Kelvin measurement of temperature is a measure of the energy of particles then how can we achieve a negative temperature and thus a negative energy? Furthermore if at Zero Kelvin particles stop moving how can you take energy from them?
Well some sci
Antimatter is a very strange concept in physics. Antimatter consists of anti particles that have the same size and mass as their corresponding ‘regular matter’ but opposite charge. For instance a positron is the size of an electron but contains a positive charge. The current theory for the universe, the Big Bang Theory, predicts that an equal amount of matter and anti matter were present at the beginning of the universe. But today, anti matter occupies a negligible amount of the universe’s compo
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
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 downw
