Time Travelling Device

[KerrTexas]

I read a comment in a journal of physics that described the possible construction of a time travelling device. It consisted of two metal plates spread apart from each other. An powerful charge of energy was to be channelled into each plate causing a flux in space and time.
Apparently with the idea of creating a donut shaped black hole.
The article was published in the Physical Review Letters, Volume 61, Page 1446.

Has anyone actually read this paper, or have a copy available. I tried to access it, but the site requests that one becomes a subscriber. It would be interesting to read this paper since the article in the journal I was reading did not describe the machine in depth.

It seems as though it would be appropriate to our research. A comment was made that even if one was successful in constructing a time machine, you could not travel back in time beyond the manufacture of the machine. Anyone hear of this limitation before?

 

[KerrTexas]

O.k., I bought the article..$$$$$22.99. whew, its only four pages long. I am in the wrong business.
However, it does present an interesting theory on time travel. It lead me to start looking at information regarding the Casimir Vacuum Theory.

Any comments on this theory..eh...anyone...?

 

[RainmanTime]

Greetings OvrLrdLegion:

A comment was made that even if one was successful in constructing a time machine, you could not travel back in time beyond the manufacture of the machine. Anyone hear of this limitation before?

Yes, I have, but I am not sure right now where I have heard this. I seem to recall that Hawking also believed this to be true as a result of the "wormhole" theory wherein the "wormhole" would have to have an entry and an exit within the spacetime contiuum. Thus, when you open a "wormhole" with the machine you would only be able to go to a time where another wormhole could be opened, which could only be in the future from the time that the machine was first able to create the hole.

I dunno. It all still seems like speculation that is based on the belief that one can modify spacetime without having to modify mass. It is my belief that mass, space, and time are intimately linked and must be "exchanged" to transform across any of them. For example, to transport through space, we use mass for propulsion while time is modified by our velocity. Therefore, I would think if we wish to transport through time that both space and mass will have to be modified. Trinity balance, you know?

RMT