Saturday, January 8, 2011

IS IT POSSIBLE OR NOT?
 
Krystel O. Navas Márquez

        What is physic? Everything around us has to do with physics. Like how the television works, how do we have electricity or how do cars work. Without physics there would be a lot of unsolved and mysterious answer on how this or that work. Physic has made very important discoveries like for example like gravity and how to fly in space. That’s why I’m going talk about different articles that I have read.
         Everyone is always asking and joking if Time Travel could be possible?  So I have found out that it is very difficult to answer that question because in fact they can’t still say NO. They started this experiment but it wasn’t looking for traveling in to time, this was an effect on Albert Einstein’s theory of “general relativity”.  This theory has 4 dimensional space-time; up/down, left/right, and front/back. For this means that it doesn’t matter where you’re standing there is always a dimensional form of your body, which you will see always. I found very interesting that in relativity one of the consequences is that movement can result in a difference in the way time passes that is known as “Time Dilatation”. They saw that consequence in the “Twin Paradox”. They saw that in Time Travel you can move into the future faster than the usual but there is still no way of coming back. I guess that this has to do also with gravity, because you’re moving in a place with it is slower but at the same time you’re going very fast.
        I found very interesting this term “Time Dilatation”. That would mean that it’s like two objects moving towards each other but experiencing different rates of time flow. This is like if we were moving at the speed of light, but at the same time it shows a slower speed. It’s like when you get on an airplane clocks click different from the clocks in the ground.  From what I read it all has to do with the elevation from the ground, the more up in the sky you are there’s less pressure and gravitation and you start to move faster but it may seem slower like normal but it cannot be seeing by human eyes, we cannot detect how fast we are really going.
       This term I really like the “Twin Paradox”, from the beginning I knew it has to do with obviously with a pair of twins and time movement cause I saw it once in discovery channel. For me this was very interesting because it shows you very clearly “Time Dilatation”. This was a pair of twins that on their 20th birthday one of them decides to go outer space. He was in space about 5 years, so he was supposed to be 25 years old, but when he came back he’s brother was 95 years old. He was moving so fast that time was very slow he thought that he only was away for 5 years but in fact he was away for 75 years. He couldn’t tell the difference because it cannot be seeing or even felt the difference. That’s why according to relativity two objects moving differently from each other will experience time differently. The closer you are from the sun, the moon or between two planets gravity it’s so big that you move rapidly so fast that everyone here on hearth thought that time is moving slow but time passes faster than when you are in space.
        In my opinion physics will always be important for the progress in our lives. Since Galileo, Newton, Einstein and much other scientist that have made new founding’s and have improved  other the world has change and it will keep changing because it works in mysterious ways that thanks to physics we can understand better. About Time Traveling honestly it scares me because going to the future and seeing what’s going to happen will make you anxious and worried because you will know what’s going to happen. I also think that it will be boring controlling you’re life. Scientist are still working and trying to improve the time machine because it keeps failing but there closer. I guess that with the discovery of “Time Dilatation” and the “Twin Paradox” there’s a possibility that it can occur Time Traveling.  It’s just a matter of time and maybe it will pass a lot of time and maybe we won’t be here to see it but no one also knows if wormholes or negative energy really exist or if they do exist how to put them together if they do exist. That’s why they say that it is possible to Travel in Time in theory and I agree.


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