# Is Time Travel Possible?

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Back to the Future, Doctor Who, Star Gate, Bill and Ted’s Excellent Adventure, Terminator, The Time Machine, and so on so forth. These movies and TV shows have one thing and common witch as your can guess is time travel. But if you look at each single one separate not one time travel is the same from the other. Before we begin we shall learn what time travel is. Time travel is when one person, matter, or object moves in a three dimensional direction in time. The three dimensions are length, width and height but for this explanation we can also put it as forward and backward, left and right, and up and down. If we add the fourth dimension which Albert Einstein’s Theory of Relativity (Guidry) has shown to be time to these three dimensions than we have time travel. Now that we know what time travel is I can now tell you about the different types of time travel and if each one of these types will work. These types of time travel are speed of light, wormhole, black hole, time machine, cryogenics, and my own theory speed travel. To travel at the speed of light you will need to travel at the speed of 186,000 miles per hour or also called max speed limit in space in which “light always travels the speed limit through empty space.” (Space) ”It would take six years at full power just to reach these speeds.” (Hawkins) “Once spaceships approached the speed of light, their crew would start skipping through Earth years on a daily basis.” (Writers) But as Dr. Space says we don’t need to travel at the speed of light to get time travel as he uses “99.5% of the speed of light” for his explanation. And we don’t have to travel at the speed of light to move forward in time. We can be just like Cosmonaut Sergei Krikalev who was in space orbiting the ... ... middle of paper ... ...Paradoxes & Possibilities." Space.com. N.p., 21 June 2013. Web. 2 Mar. 2014. . Smith, Heather R.. "What is a Black Hole?." NASA. NASA Education, 30 Sept. 2008. Web. 23 Feb. 2014. . Space, Marc. "Is time travel possible?."NASA's Space Place. N.p., n.d. Web. 2 Mar. 2014. . Wheeler, John. "The Science of Time Travel." The Science of Time Travel. N.p., n.d. Web. 3 Mar. 2014. . Writers, Staff. "Time travel possible, but only moving forwards, says Stephen Hawking." NewsComAu. N.p., 3 May 2010. Web. 3 Mar. 2014. .