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    <title><![CDATA[Discussion on Is time travel possible? ]]></title>
    <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974]]></link>
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    <lastBuildDate>2013-05-19T05:26:22-07:00</lastBuildDate>
             

    <item>
        <title><![CDATA[Has Never been..]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-93725]]></link>
        <description><![CDATA[If time travel existed somebody, anybody.. should have witnessed someone from future till now.... if there are no such records of a person from a different time, then time travel atleast towards the past has never really happened! If nobody from future ever appeared till now...then nobody ever has time travelled in the future..!]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-93725]]></guid>
        <dc:creator><![CDATA[Tiara18]]></dc:creator>
        <pubDate>Mon, 18 Feb 2013 03:17:51 -0800</pubDate>
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        <title><![CDATA[Time]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-78956]]></link>
        <description><![CDATA[What is 'TIME' by the way??????????????????]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-78956]]></guid>
        <dc:creator><![CDATA[masterinno]]></dc:creator>
        <pubDate>Mon, 17 Sep 2012 06:25:50 -0700</pubDate>
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        <title><![CDATA[Going Back in time]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-78971]]></link>
        <description><![CDATA[Going back in time!!! despite all the so called development in science, too fundamental perceptions such as time, point, infinitesimal, infinity, dimensions are actually not understood. you can't imagine going back your imagination!]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-78971]]></guid>
        <dc:creator><![CDATA[masterinno]]></dc:creator>
        <pubDate>Mon, 17 Sep 2012 06:24:30 -0700</pubDate>
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    <item>
        <title><![CDATA[Picure this]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-76865]]></link>
        <description><![CDATA[If going near the speed of light you have a penlight on forward can the power of that little light accumulate? Could cosmic rays actually be records of FTL flight? Dumb idea but if if FTL happens it will require immense amounts of power applied. Perhaps that would explain why they come from all sorts of directions and are not consistent sources. Just a little extra BS to throw into the mix.Have fun withe ideas. That';s where the furture comes from]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-76865]]></guid>
        <dc:creator><![CDATA[DS1Roger]]></dc:creator>
        <pubDate>Sun, 26 Aug 2012 10:53:21 -0700</pubDate>
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        <title><![CDATA[not exactly]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-66457]]></link>
        <description><![CDATA[The space is not moving away from the center of the universe. Instead, the space itself is expanding. So the laws of physics prohibits objects from moving faster then light with respect to each other but there's no such constraint when the space between them is expanding. (If this doesn't make sense to you --&gt; http://en.wikipedia.org/wiki/Observable_universe)]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-66457]]></guid>
        <dc:creator><![CDATA[belli_bettens@...]]></dc:creator>
        <pubDate>Tue, 20 Mar 2012 07:12:27 -0700</pubDate>
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        <title><![CDATA[Speed Limits?]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-66182]]></link>
        <description><![CDATA[As Einstein put it, spooky movements at a distance or something to that effect. Entanglement is why he was concerned since it would cause something faster than light speed to occur in a cause and effect relationship.Just guessing]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-66182]]></guid>
        <dc:creator><![CDATA[rjangelino@...]]></dc:creator>
        <pubDate>Fri, 16 Mar 2012 13:33:33 -0700</pubDate>
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        <title><![CDATA[Where are the tourists?]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-66102]]></link>
        <description><![CDATA[The other possible implication (besides time travel not being possible) is that humankind doesn't last long enough to develop it and our primitive selves just aren't that interesting to anybody else who did.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-66102]]></guid>
        <dc:creator><![CDATA[sullivanjc]]></dc:creator>
        <pubDate>Fri, 16 Mar 2012 08:03:36 -0700</pubDate>
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        <title><![CDATA[The subject of time travel.....]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-64801]]></link>
        <description><![CDATA[Great subject and one of much speculation, thank you for sharing.... wanted to pass the following links along to any with an interest in this subject???Time travel is impossible!Read Q&amp; A in its entirety???http://www.divineadvancedhumanbeings.com/answers/i-am-completely-off-topic-so-feel-free-not-to-answer-but-i-thought-i-might-as-well-ask-just-in-case-travelling-from-here-through-other-dimensions-typically-involves-leaving-the-space-time-continuu/Also, you may be interested in the following article referencing time travel???These advanced being-aliens are not from the future. Time travel for them and all beings, for that matter, is impossible regardless of the technology that they possess. Even God cannot time travel!http://www.divineadvancedhumanbeings.com/do-aliens-exist/]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-64801]]></guid>
        <dc:creator><![CDATA[diivneadvancedhumanbeings.com]]></dc:creator>
        <pubDate>Mon, 27 Feb 2012 18:40:52 -0800</pubDate>
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        <title><![CDATA[thanks  for  sharing]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-51065]]></link>
        <description><![CDATA[Great!!! thanks for sharing this information to us! sesli chat   sesli sohbet]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-51065]]></guid>
        <dc:creator><![CDATA[yarinsiz]]></dc:creator>
        <pubDate>Fri, 26 Aug 2011 15:02:06 -0700</pubDate>
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        <title><![CDATA[Sure they do!]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48793]]></link>
        <description><![CDATA[They act like brakes. Just don't drive towards a mirror!]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48793]]></guid>
        <dc:creator><![CDATA[FiOS-Dave]]></dc:creator>
        <pubDate>Sun, 31 Jul 2011 10:35:49 -0700</pubDate>
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    <item>
        <title><![CDATA[Not Me!]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48814]]></link>
        <description><![CDATA[No, I never read this...]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48814]]></guid>
        <dc:creator><![CDATA[FiOS-Dave]]></dc:creator>
        <pubDate>Sun, 31 Jul 2011 10:33:41 -0700</pubDate>
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    <item>
        <title><![CDATA[I hope you're right]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48792]]></link>
        <description><![CDATA[Wonders will never cease]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48792]]></guid>
        <dc:creator><![CDATA[TonyTrenton]]></dc:creator>
        <pubDate>Sun, 31 Jul 2011 10:17:50 -0700</pubDate>
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    <item>
        <title><![CDATA[Why we can't reach the speed of light 'C']]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48802]]></link>
        <description><![CDATA[The energy required to accelerate any mass rizes exponentially. As the speed aproaches 'C' the increase in the effective mass becomes infinite. So to does the required energy. That is the simplest explanation. It require an infinite amount of energy to accelerate any mass to reach the speed of lightThis doesn't apply to expansion of space/time itself. So if we could safely cocoon ourselves in an electromagnetic bubble and compress the space/time in front of us while stretching it out behind us. There would be no limit to the effective speed. Of course navigation would be a *****. The Einstein-Rosen bridge idea that is better known as wormholes, would work if you could stop them from collapsing into a singularity and crushing all of your atoms and sub atomic particles out of existance as soon as you entered the mouth. That is of course if you can find one.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48802]]></guid>
        <dc:creator><![CDATA[TonyTrenton]]></dc:creator>
        <pubDate>Sun, 31 Jul 2011 10:14:21 -0700</pubDate>
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    <item>
        <title><![CDATA[Backwards]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48784]]></link>
        <description><![CDATA[Thanks, YetAnotherBob. As you see, my comprehension of the experiment wasn't that great. And, isn't c a theoretical speed in NOTHING rather than the speed of light in a vacuum? (I've been reading Brian Cox's great books on making heady cosmological topics understandable for dummies like me).]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48784]]></guid>
        <dc:creator><![CDATA[dangnad]]></dc:creator>
        <pubDate>Sat, 30 Jul 2011 17:38:02 -0700</pubDate>
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    <item>
        <title><![CDATA[Space Warp]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48772]]></link>
        <description><![CDATA[I think you're right about the past still being there. I still love the &quot;space warp&quot; concept of science fiction where you could &quot;cut across&quot; the curvature of space-time and, say, go back to Nov 22 1963 and observe what really happened in Dealy Plaza.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48772]]></guid>
        <dc:creator><![CDATA[dangnad]]></dc:creator>
        <pubDate>Sat, 30 Jul 2011 17:37:27 -0700</pubDate>
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    <item>
        <title><![CDATA[Typically when we think of time travel]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48761]]></link>
        <description><![CDATA[Maybe the past is still there ? Maybe time just is. If time travel into the past and future is possible then where are the tourists ?If as I suspect, Our universe is only one of a myriad of globule universes extruded by the singulrity of a black hole from a previous Universe and expanding into a region of total entropy, I like to call the 'Big Nothing'.This starts to make sense, if we consider that a singularity is infinitely small, hot, and dense.Then we can presume that Infinities are the order of the day and it is a cycle of  black hole singularity to black hole singularity.We humans are still very primitive. Our Homo sapien brains are only about 80,000 years young. Which is shorter than a blink of the eye in cosmic terms and we can't rap our heads arround infinities.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48761]]></guid>
        <dc:creator><![CDATA[TonyTrenton]]></dc:creator>
        <pubDate>Sat, 30 Jul 2011 06:37:45 -0700</pubDate>
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        <title><![CDATA[Not quite correct.]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48709]]></link>
        <description><![CDATA[The signal in the experiment you referred to didn't go backwards in time, it just appeared to move faster than the signal did in a vacuum, or in a fiber optic cable.the aparatus, if I recall correctly, involved a high magnetic field, with a high voltage between two parallel plates, separated by about a wavelength in a vacuum. The interpretation made at the time was that the plates and magnetic would, working together, suppress the creation and destruction of virtual particles, which is believed to occur in empty space all the time, at a small enough scale. If i remember correctly, the researcher (Russian, I think) calculated that the speed of light under these special circumstances was about 25% faster than in a vacuum.Richard Feynman is the one who equated faster than light travel with time travel. It may not turn out to be true. We really don't know enough to be able to say.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48709]]></guid>
        <dc:creator><![CDATA[YetAnotherBob]]></dc:creator>
        <pubDate>Fri, 29 Jul 2011 19:42:17 -0700</pubDate>
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        <title><![CDATA[Results]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48708]]></link>
        <description><![CDATA[Actually, this experiment just proves that light can't go faster than light.All rest mass particles, like protons, neutrons, electrons, and you and me are limited to travel at slower than light speed. But, that is still in a local space. related to a viewpoint from very far away, we are in fact moving faster than light, right now. It all depends on how you look at it, and from where.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48708]]></guid>
        <dc:creator><![CDATA[YetAnotherBob]]></dc:creator>
        <pubDate>Fri, 29 Jul 2011 19:35:11 -0700</pubDate>
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        <title><![CDATA[answer to your good question]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48707]]></link>
        <description><![CDATA[You can never actually reach the speed of light. You can just get very close.To you in the car, you will see the headlights acting normally. To someone outside the car, it might be very different. But, they would have to look very quickly.Of course, your clock will be off by a lot when you do stop.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48707]]></guid>
        <dc:creator><![CDATA[YetAnotherBob]]></dc:creator>
        <pubDate>Fri, 29 Jul 2011 19:31:44 -0700</pubDate>
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        <title><![CDATA[Speed Limit]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48706]]></link>
        <description><![CDATA[So, light (photons) can't travel faster than light. Now that's a really surprising conclusion. I wonder if Sound can travel faster than sound? Oh well. It's time to ask other questions. All of this will seem so silly in a few years.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-6974-48706]]></guid>
        <dc:creator><![CDATA[YetAnotherBob]]></dc:creator>
        <pubDate>Fri, 29 Jul 2011 19:28:38 -0700</pubDate>
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