Jump to content

Tanner7

Members
 View Profile  See their activity

  • Posts

    28

  • Joined

  • Last visited

 Content Type 

Blog Entries posted by Tanner7

  1. Tanner7
    Gravitional time dilation is actually a real phenomonon that has observational evidence here on earth. This only occurs because time is relative which means that time runs at different rates and different reference frames. This is caused because areas with a strong gravitational environment time will run slower and vise versa.

    Say you are near a black hole, like the one from "intersteller" your refrence frame, or otherwise known as your perception of time, will change if say you were looking at a blackhole from earth. So lets say if you were near the black hole in space it took 30 seconds, if you were on earth looking at the black hole it would be less than 30 seconds. Therefore, you would age slower than people on earth. This is because of the stronger gravitational feild environment you're in the more extreme the time dialtion.
  2. Tanner7
    The first law of Thermodynamics holds that in any situation the total amount of energy with in is equal to the total amount of energy out. This also means that you can't create energy or destroy it. So well what happened to all the energy we have put in our bodies? The long story short, most of the energy is stored in your body, and on average a human carries around 7*10^18 joules of energy on average. If all that energy were to release all at once, it would have the same effect as setting OFF 30 HYDROGEN BONDS AT THE SAME TIME!!!!!
  3. Tanner7
    Wormholes like the one the crew used in "Intersteller" is one of the few physics phenomonons that doesn't have any observational evidence to support it. It is strictly theoretical but an incredibl plot device for a science fiction action thriller.

    Wormholes are essential shortcuts through space. An object with mass will create a divot in space or in otherwise stretches, folds, or distorts space. Wormholes are folds of the fabric in space (otherwise known as time) connecting to very long distances in space. Therefore create a gap that space explores can go through and be able to travel a extremely large distance in a very short amount of time.
  4. Tanner7

    Artificial Gravity

    By Tanner7,

    If you have seen the intense, action packed thriller "Intersteller" you would then would some-what know what im talking about when i mention artificial gravity. We were born on earth and our bodies have adapted to the gravitational pressure that our bodies under go on a daily basis. Well when people go into space, where there gravitational pressure is not as great, over a long period of time our muscles start to degrade. This is an issue that happend in the movie "Intersteller".

    To work against this anti gravity enovironment in space, we had to create different designs that simulate Artificial gravity in space ships. You are capable of doing this by rotating the space craft like in the movie. This rotation creates a force called centripital force pushing objects to the outer walls of the space craft. This push is similar to gravity but just in the opposite direction. An example of this kinda force is if you go around a tight turn at a high speed the push in the space craft is just the same as the push you feel on you when you go around that turn.
  5. Tanner7
    it is true that matter and energy are just two sides of the same coin. In fact, you've known this your whole life, if you've ever heard of the formula E=mc^2. The E equals Energy and the m equals Mass. The amount of energy contained in a particular amount of mass is determined by the conversion factor c squared, where c represents... the speed of light.

    The explanation for this phenomenon is really quite fascinating, and it has to do with the fact that the mass of an object increases as it approaches the speed of light (even as time is slowing down). It is, however quite complicated, so for the purpose of this blog post, I'll simply assure you that it's true. For proof(unfortunately), look no further than atomic bombs, which convert very small amount of matter into very large amounts of energy.
  6. Tanner7
    it is true that matter and energy are just two sides of the same coin. In fact, you've known this your whole life, if you've ever heard of the formula E=mc^2. The E equals Energy and the m equals Mass. The amount of energy contained in a particular amount of mass is determined by the conversion factor c squared, where c represents... the speed of light.

    The explanation for this phenomenon is really quite fascinating, and it has to do with the fact that the mass of an object increases as it approaches the speed of light (even as time is slowing down). It is, however quite complicated, so for the purpose of this blog post, I'll simply assure you that it's true. For proof(unfortunately), look no further than atomic bombs, which convert very small amount of matter into very large amounts of energy.
  7. Tanner7

    Dark matter

    By Tanner7,

    Physicists have a pretty good ways of measuring the total mass present in the universe. They also have some pretty accurate ways of measuring the total mass we can observe, but here's the catch-the two numbers don't match up.

    In fact, the amount of total mass in the universe is vastly greater than the total mass we can actually account for. Physicists were forced to come up with an explanation for this, and the leading theory right now involves dark matter, a mysterious substance that emits no light and accounts for approximately 95% of the mass in the universe. While it hasn't been formally proved to exist (because we can't see it), dark matter is supported by a ton of evidence, and has to exist in some for or another in order to explain the univers.
  8. Tanner7
    I'm here to talk about the theory of General Relativity, this involves an ideas called light deflection, which is exactly what it sounds like- the path of a beam of light is not entirely straight.

    As strange as this may seem to you, it's been proven repeatedly. What this means is that, even though light doesn't have any mass, its path is affected by things that do-such as the sun. So if a beam of light from, lets say a really far off star in the sky passes aclose enough to the sun it will actually bend slightly around it, The effect on a star gazer such as us is that we see the star in a different spot of the sky than it's actually located (much like fish in a lake are never spotted where they appear to be when looking at them from above water). So remember the next time you look up at stars, it could all just be a track of light.
  9. Tanner7

    the universe

    By Tanner7,

    The study of physics is the study of the universe-and more specifically, just how the universe works. It is without a doubt the most interesting branch of science, because the universe, as it turns out, is a whole lot more complicated than it looks on the surface (and it looks pretty complicated already). The world works in some weird ways, and through you made need a PhD to understand why, you only need a sense of awe to appreciate how.
    According to Einsteins's Theory of Special Relativity, the speed of light can never change-it's always stuck at approximately 300,000,000 meters/second, no matter who's observing it. This in itself is incredible enough, given that nothing can move faster than light, but it's still vey theorectical. The really cool part of special relativity is an idea called dilation, which states, that the faster you go, the slower time passes for you relative to your surroundings. Seriously-if you go take a ride in your car for an hour, you will have aged ever-so-slightly less than if you had just sat at home on your computer. The extra nanoseconds you get out of it might not be worth the price of gas:).
  10. Tanner7

    Quantum Entanglement

    By Tanner7,

    We all can agree on that there is nothing faster than the speed of light correct? Well, yes and no. While it is technically it is true, but at least in theory it turns out that there's a loophole to be found in the mind-blowing branch of physics known as quantum mechanics.

    Quantum mechanics, in essence, is the study of physics at a microscopic scale, such as the behavior of subatomic particles. These types of particles are the impossibly small, but very important, as they form the building blocks for everything in the universe. I'll leave the technical details aside for now (it gets very complicated), but you can picture them as tiny, spinning, electrically-charged marbles. Okay, maybe that's kind of complicated too.

    So say we have two electrons (a subatomic particle with a negative charge). Quantum entanglement is a special process that involves pairing up these particles in such a way that they become identical (marbles with the same spin and charge). When this happens, things get weird-because from now on, these electrons stay identical. This means that if you change one of them-say, spin it in the other direction, its twin reacts in exactly the same fashion. Instantly, no matter where it is. Without you even touching it. the implications of this process are huge, it means that information (in this case, the direction of the spin) can essentially be teleported anywhere in the universe.
  11. Tanner7
    Bowling is a very skilled sport because of the way you need to add the right amount of spin to the ball and speed to get it to a precise location to hit a set of pins. For this to occur the ball is designed a certain way so that the motion of the balling ball rolling across the ground moves in a specific way.

    In the balling balls interior core it has a asymmetrical weight inside and are pinned in place with two pins because of its non symmetry. These pins help with the placement of the holes for your two fingers and your thumb. The PAP on a balling ball refers to the original axis of rotation, so in a nutshell, the location of the PAP relative to the pins on the bowling ball determines how much the bowling ball precesses as it travels down the lane. Consequently, the level of precession is directly proportional to the level of friction between the lane and the bowling ball. Without precessions the bowling ball would make less revolutions not creating a larger surface area that hits the oil on the lane, directly causing less friction which means less spinning.
  12. Tanner7
    In soccer curving the soccer ball is one of the many ways you can put the ball passed the goalie and into the net. Watching a player like David Beckham kick the soccer ball and put curve on it you will see the how far the ball curves back inside and into the net with incredible accuracy. As this is the process of the air dragging against the ball while it soars through the air.

    When the ball is spinning, the air tends to follow a longer path around one side than the other, because it's dragged along by the ball's turning surface." Air following the longer path bends more sharply, resulting in a dramatic drop in air pressure on that side of the ball. The ball is pushed toward the low-pressure side. A similar drop in pressure over an airplane's wing is the source of lift that supports the plane. Now when you see someone kick a soccer ball or throw a baseball and it curves you know why is does that, and now can explain the process to other people.
  13. Tanner7
    If you have ever watched golf on T.V or even went to the PGA over at Oak Hill, you would have scene that every player was able to get their balls to hit the green and stop or spin backwards. They do this because they don't want their ball to roll of the green and cost him an extra stroke on that hole. But have you ever wondered how they are even able to do that by just hitting a ball with club? The answer is simple... PHYSICS!!

    First of the a golf ball has dimples in it, what are these for you ask? well the dimples help the ball with air drag. More specifically, a thin layer of air clings to the surface of the ball at the front, and then passes over the ball as it moves, eventually breaking away from the surface at the back of the ball. This sets up little currents of turbulence behind the ball which slow it down. Dimples on the surface of the ball cause the air to cling to it longer. When the air finally breaks away from a dimpled ball, a narrower stream of turbulence is produced, which causes less drag. Therefore, the air drag causes much of the spin that is done on the ball rather than the club head and when the ball hits the green, the dimples in affect cause more friction when it comes into contact with the green. so when the amount of force of backspin on the ball has a positive net force going backwards the ball is going to head backwards when it reaches the green.
  14. Tanner7
    The slapshot is the hardest shot in Hockey! Getting up to speeds of 120mph only by the flexing the stick and transfering your body weight throught the shot, therefore youre building up a lot of potential energy right before contact with the puck. It seems that when you see a pro take a slap shot it is all in one swing, with the arms doing all the work and the blade of the stick only hitting the puck. Well, our eyes are decieving because that is far from what actually happens in a true hockey slapshot.

    Turns out that as the stick hits the ice first it bends back a little, storing potential energy. Then, as it is lifted, it springs forward off the ice, giving the puck a powerful flick that's actually faster than the hockey player's follow-through would otherwise be. Most of the power in shots for hockey depends on the amount of flex you can put on your stick so when you follow throught the stick will have more flick to it causing it to rise up to speeds of 120 mph. Fun Fact, a stick has to have a force of up to a ton to break!!

Terms of Use

The pages of APlusPhysics.com, Physics in Action podcasts, and other online media at this site are made available as a service to physics students, instructors, and others. Their use is encouraged and is free of charge. Teachers who wish to use materials either in a classroom demonstration format or as part of an interactive activity/lesson are granted permission (and encouraged) to do so. Linking to information on this site is allowed and encouraged, but content from APlusPhysics may not be made available elsewhere on the Internet without the author's written permission.

Copyright Notice

APlusPhysics.com, Silly Beagle Productions and Physics In Action materials are copyright protected and the author restricts their use to online usage through a live internet connection. Any downloading of files to other storage devices (hard drives, web servers, school servers, CDs, etc.) with the exception of Physics In Action podcast episodes is prohibited. The use of images, text and animations in other projects (including non-profit endeavors) is also prohibited. Requests for permission to use such material on other projects may be submitted in writing to info@aplusphysics.com. Licensing of the content of APlusPhysics.com for other uses may be considered in the future.

APlusPhysics Books

APlusPhysics Books

×
×
  • Create New...