How viable is time travel?
Time; it organizes our lives and universe into an ordered series of moments. At first thought, time is one of the most fundamental aspects of our lives and the world we know. However, time is in fact incredibly subjective; everyone experiences this indefinable concept differently.
Einstein's Theory of Special Relativity is based upon the idea of frames of reference. A frame of reference is where an observer is situated. In order to develop a universal concept of time, one would need an absolute frame of reference in the universe; however such a thing does not exist as there is no point in the universe which is completely stationary. The Second Postulate of the Special Theory of Relativity is that the speed of light …show more content…
The necessary conditions can be created by being whirled in a giant centrifuge at near light speeds as it is simply the motion that is required the distance is irrelevant. However Tollaksen said that it would kill anyone who tried it. The body's anatomy is certainly a major hinderance for us to be able to time travel; the force experienced in a giant centrifuge pushes down on the heart making it more difficult to deliver blood to the brain. In order to overcome these problems, one would have to accelerate at a g force that humans can withstand. It has been determined that the human body can survive a maximum of 9g's, allbeit only for a few seconds. Increasing the g force on the body makes it feel 9 times heavier; which is why the heart struggles to pump the heavier blood around the body. Blood rushes to the feet and our vision narrows to a tunnel. Prolonged exposure to this level of force will result in a blackout of vision, passing out and eventually death. To accelerate to the speed of light safely would take several months, although an impractical length of time which brings to rise many other issues, we would survive the g force at least and make it to the speed of light. (The Science of Star Wars by Jeanne Cavelos, …show more content…
Einstein's Theory of Special Relativity, in short, deals with how time is affected by speed. Einstein had another theory, the Theory of General Relativity, which is about how time is affected by gravity. (Elizabeth Howell. http://www.space.com/21675-time-travel.html, 2013).
In order to understand and visualise the effect of gravity on time predicted by Einstein's Theory of General Relativity, imagine a large piece of fabric suspended at each end and raised. This represents an area of Einstein's idea of space-time. Now place a spherical object on the fabric; this represents a planet. See how the fabric dips into the ball. You could roll a marble around the edge of the fabric and see that it spirals inwards towards the larger mass; in a way very similar to how a planet pulls at rocks in outer space. (Nola Taylor Redd, http://www.space.com/17661-theory-general-relativity.html, 2012)
Create and photograph this
Time; it organizes our lives and universe into an ordered series of moments. At first thought, time is one of the most fundamental aspects of our lives and the world we know. However, time is in fact incredibly subjective; everyone experiences this indefinable concept differently.
Einstein's Theory of Special Relativity is based upon the idea of frames of reference. A frame of reference is where an observer is situated. In order to develop a universal concept of time, one would need an absolute frame of reference in the universe; however such a thing does not exist as there is no point in the universe which is completely stationary. The Second Postulate of the Special Theory of Relativity is that the speed of light …show more content…
The necessary conditions can be created by being whirled in a giant centrifuge at near light speeds as it is simply the motion that is required the distance is irrelevant. However Tollaksen said that it would kill anyone who tried it. The body's anatomy is certainly a major hinderance for us to be able to time travel; the force experienced in a giant centrifuge pushes down on the heart making it more difficult to deliver blood to the brain. In order to overcome these problems, one would have to accelerate at a g force that humans can withstand. It has been determined that the human body can survive a maximum of 9g's, allbeit only for a few seconds. Increasing the g force on the body makes it feel 9 times heavier; which is why the heart struggles to pump the heavier blood around the body. Blood rushes to the feet and our vision narrows to a tunnel. Prolonged exposure to this level of force will result in a blackout of vision, passing out and eventually death. To accelerate to the speed of light safely would take several months, although an impractical length of time which brings to rise many other issues, we would survive the g force at least and make it to the speed of light. (The Science of Star Wars by Jeanne Cavelos, …show more content…
Einstein's Theory of Special Relativity, in short, deals with how time is affected by speed. Einstein had another theory, the Theory of General Relativity, which is about how time is affected by gravity. (Elizabeth Howell. http://www.space.com/21675-time-travel.html, 2013).
In order to understand and visualise the effect of gravity on time predicted by Einstein's Theory of General Relativity, imagine a large piece of fabric suspended at each end and raised. This represents an area of Einstein's idea of space-time. Now place a spherical object on the fabric; this represents a planet. See how the fabric dips into the ball. You could roll a marble around the edge of the fabric and see that it spirals inwards towards the larger mass; in a way very similar to how a planet pulls at rocks in outer space. (Nola Taylor Redd, http://www.space.com/17661-theory-general-relativity.html, 2012)
Create and photograph this