Time Cloak Can Make 'Events' Simply Vanish!

By Meera Dolasia on January 16, 2012

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Got caught taking that last cookie from the jar or glancing at a neighbor's paper during a mid-term? How often have you wished you could simply make that moment vanish? Believe it or not, scientists have now figured out a way to make that wish a reality.

The Time Cloak which was spearheaded by Moti Fridman, a researcher at New York's Cornell University, uses the same principal as that applied when trying to conceal an object - Light wave manipulation. While concealing an object involves bending the light, concealing time, involves changing the speed of light.

To demonstrate the 'disappearance' the team conducted an experiment inside a fiber optic cable, fitted with two special lenses. They began by passing a beam of green light through it. When it hit the first lens, the light split into two speeds - One a little slower than the other. While that was going on, they quickly beamed a red laser through the cable. However, since it occurred precisely at the moment the light split, it was 'invisible' to the audience, making it seem as though the 'event' had never happened.

Further down, another lens helped put the light beam back together so that when it emerged on the other side of the cable, it appeared as though nothing had happened.

According to the scientists the closest analogy to this is what happens when a movie is edited. The director cuts out frames that he doesn't think are relevant and then, splices the rest of the movie back together, like the scene(s) never happened.

The best part is, that since 'Invisibility cloaks' work by bending light, scientists see no reason why the two could not be used simultaneously - That is, an 'invisible' person could perform an 'invisible' action, and nobody would know any better.

However, before you get your hopes up, be warned that the demonstration that hid the beam of red light lasted for all of 40 trillionths of a second or 40 Pico seconds - not enough time to even bat an eyelid. But while scientists may never be able to stretch the time far enough for you to finish a cookie, they may be able to extend it enough to hide transmission of top-secret data, something that would be quite valuable to government officials. We just hope that some day they are able to do more than that - don't you?

Resources: gizmondo.com, msnbc.com

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448 Comments
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  • peacheslarue
    peacheslarueSaturday, December 13, 2014 at 12:00 pm
    Awesome....
    • PikachuWednesday, November 12, 2014 at 9:58 am
      this is similar to the ''invisibility cloak'' article. you should read it.
      • HIThursday, November 6, 2014 at 8:09 am
        COOL
        • craygal
          craygalMonday, October 27, 2014 at 2:10 pm
          This is really interesting
          • leap411
            leap411Sunday, October 19, 2014 at 6:41 pm
            What if the start of the cloaking and the end of the cloaking don't fit together?!
            • leap411
              leap411Sunday, October 19, 2014 at 6:37 pm
              What if the start of the cloaking and the end of the cloaking Don't fit together?!
              • leap43
                leap43Sunday, October 19, 2014 at 9:06 am
                nice
                • alexh123
                  alexh123Friday, October 17, 2014 at 10:48 am
                  wow, but its not real time manipulation
                  • Royce Thursday, October 16, 2014 at 8:35 am
                    I wish I could have one too guys
                    • omsjjdjMonday, October 6, 2014 at 5:03 pm
                      cool ;)

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