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Message: <blockquote data-quote="AndyLaw" data-source="post: 14870871" data-attributes="member: 399220">Why people even bother reading such stories about "I invented time machine".Well here is some enlightment:In order to sidestep the issue of Newton's Third Law of Motion and  the impossibility of matter traveling faster than the speed of <a href="http://science.howstuffworks.com/light.htm" target="_blank">light</a>, we can look to Einstein and the relationship between space and <a href="http://people.howstuffworks.com/time.htm" target="_blank">time</a>.  Taken together, space, consisting of three dimensions (up-down,  left-right, and forward-backward) and time are all part of what's called  the space-time continuum.     It's important to understand Einstein's work on the space-time  continuum and how it relates to the Enterprise traveling through space.  In his <a href="http://science.howstuffworks.com/relativity.htm" target="_blank">Special Theory of Relativity</a>, Einstein states two postulates:    <ul> <li data-xf-list-type="ul">The speed of light (about 300,000,000 meters per second) is the same for all observers, whether or not they're moving.</li> <li data-xf-list-type="ul">Anyone moving at a constant speed should observe the same physical laws.</li> </ul>     Putting these two ideas together, Einstein realized that space and  time are relative -- an object in motion actually experiences time at a  slower rate than one at rest. Although this may seem absurd to us, we  travel incredibly slow when compared to the speed of light, so we don't  notice the hands on our watches ticking slower when we're running or  traveling on an airplane. Scientists have actually proved this  phenomenon by sending <a href="http://science.howstuffworks.com/atomic-clock.htm" target="_blank">atomic clocks</a> up with high-speed <a href="http://science.howstuffworks.com/rocket.htm" target="_blank">rocket</a> ships. They returned to <a href="http://science.howstuffworks.com/earth.htm" target="_blank">Earth</a> slightly behind the clocks on the ground.     What does this mean for the Captain Kirk and his team? The closer an  object gets to the speed of light, that object actually experiences time  at a significantly slower rate. If the Enterprise were traveling safely  at close to the speed of light to the center of our <a href="http://science.howstuffworks.com/galaxy.htm" target="_blank">galaxy</a> from Earth, it would take 25,000 years of Earth time. For the crew, however, the trip would probably only take 10 years.     Although that timeframe might be possible for the individuals  onboard, we're presented with yet another problem -- a Federation  attempting to run an intergalactic civilization would run into some  problems if it took 50,000 years for a starship to hit the center of our  galaxy and come back.     So the Enterprise has to avoid the speed of light in order to keep  the passengers onboard in synch with Federation time. At the same time,  it also must reach speeds faster than that of light in order to move  around the universe in an efficient manner. Unfortunately, as Einstein  states in his Special Theory of Relativity, nothing is faster than the  speed of light. Space travel therefore would be impossible if we're  looking at the special relativity.</blockquote>

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