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MadIce

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MadIce last won the day on May 7 2012

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  1. MadIce

    StarLab

    Yes, I am, Einstein. I take it you are the same Einstein as I knew back in those days. ;)
  2. MadIce

    StarLab

    While cleaning up my hard disk drives I've found a video of StarLab. I nearly forgot about it, but I thought I might share it with you. The video can also be found on YouTube (link provided below). As far as I know this research lab was one of the few publicly investigating time travel. StarLab is a for-profit organization with several branches. One of them was in Belgium and it was closed down a decade ago. The other remaining one still in operation is in Spain. The Spanish division is a consultancy company which turns science into technology. These people are hired by the industry and are, unlike their Belgium counterpart, not involved in theoretical scientific research. The now defunct Belgium branch was far more interesting. Starlab existed from 1996 to 2001. It was a think tank in which (at their peak) 130 scientists worked on a wide range of research areas. They got their money from private investors or from selling technology that their research may have created. One of those areas was time travel. Sergei Krasnikov is a theoretical physicist working for StarLab and was hired just before the lab closed as research manager "in a project to assess the viability of time travel under realistic physical conditions". He has published various peer reviewed papers on the subjects mentioned in the quote above. It should be noted that Sergei Krasnikov was interested in time travel to investigate how spacetime worked and as far as I know did not find any evidence for practical use, nor did he advocate time travel. I think he was more interested to falsify any theories and StarLab gave him that opportunity. In the clip he is fairly clear about that. https://www.youtube.com/watch?v=0X_HDSQXMI0. Still, I think it is too bad this project went down. If you know of any other public think tanks like this one then please tell us about it.
  3. The US tried to do the same with cryptology. I remember that the Scientific American writing about the Knapsack Cipher (an encryption method) was taken from the shelves in the late 70s. In 1991 a scientist published a paper about a very high quality encryption system called PGP (Pretty Good Privacy). That allowed documents to be encrypted by everyone and was nearly unbreakable for everyone, including the US government. And it didn't matter whether anyone knew how it worked or not. That was the strength of PGP. Ghehe. Of course the guy was prosecuted. He was never convicted, though. Scientist argued that the US better lift the ban on scientific publications around that field, because it would cause a significant disadvantage, when the US could not take part in the international cryptology developments. That ban has been lifted, but all kinds of silly regulations still exist to protect "us" against <insert some imaginary enemy>. It is interesting to note that PGP has now has become an open standard in RFC 2440 as OpenPGP. Scientists always find a way. ;) So, China isn't doing themselves a favor. *points to signature* ;)
  4. In real physics understanding spacetime is important to understand gravity. So, we saw lots of research in the past two decades about that. Time travel was a byproduct of that. A lot of peer reviewed papers (literally hundreds about the subject) can be found on the net. Most of these are about thought experiments and their physics implications. These are hard to read if you are not into math, quantum mechanics, string theory, and so on. Often they just discuss a part of the problem and you have to search for the missing parts in other (sometimes unrelated) papers. Because theories need to be falsified, reading a paper A that mentions a given method can be proven wrong by B published several years later. That's how it goes. Whilst TT may be theoretically possible, most methods are not concerned with actually sending travelers. Of course all of that also takes the fun away. ;) I think, because gravity is still not well understood these days and because string theory has seen a revival we see a steady stream of peer reviewed papers mentioning TT/spacetime/gravity in one way or another. Sometimes you'll find help in a totally unrelated subject. Here is an example. Another field is that of quantum computing. It is in the stage of actual development. In September 2011 it was proven that quantum computers can be turned into a device using the van Neuman architecture. In Februari 2012 IBM said that, after many years of research, they know enough to create such a device and are actually creating one. Currently it needs extreme low temperatures which can only be created in a lab, so you won't find them on your desk next year. However, in April 2012, yet another international team working on the problem for many years, build a prototype of a computer using two qubits that actually worked in 95% of the time. They claim that the diamond based technology can be scaled to room temperature. According to David Deutsch, a researcher who worked on quantum computing for a long time, quantum computing is (or more general quantum superpositions are) evidence of a many worlds quantum multiverse. He wrote a book about that called "The Beginning of Infinity", which was published in 2011. The existence of quantum superpositions have been proven by various experiments long ago, and the principle does make quantum computers work. And now technology has been created to apply the theory. Why is that important to TT? Well, some TT theories require a many worlds quantum multiverse to make sense of TT and to get rid of any paradoxes (should such paradoxes exist). So, by itself quantum computing is unrelated to TT, but indirectly it helps to find the pieces of the puzzle.
  5. I hope I have the chance to see it over here. It doesn't need to. /me points to his sig. ;)
  6. If it is that simple to make something happen then why not focus on an event like a break-through time travel research development. ;) If one in five succeeds then we'll dream up 5 such developments. ;)
  7. Re: Nature.com: Gravity doughnut promises time mac The laser is inside the car AND it bends. What shields it from the outside (like doors and windows and anything else in the picture) should be bend too. Unlike a magnet, those forces are not selective.
  8. Re: Nature.com: Gravity doughnut promises time mac BTW: Here is the original (free) paper: A new time-machine model with compact vacuum core by Amos Ori.
  9. Re: Nature.com: Gravity doughnut promises time mac The post above is similar to one I made on another TT site. I thought it would be appropriate to post it here to show Titor fans that wormholes have slightly different properties than they imagine.
  10. Re: Nature.com: Gravity doughnut promises time mac Let's get back to John Titor's laser beam picture. He wrote about that picture: The picture has been discussed at length in: John Titor's Laser Picture Was FAKED - Proof by Late Night Owl. The reason the laser beam would bend in the picture (assume the time machine is real) is because the spacetime in its surroundings is warped. It's impossible for the light beam to bend while the surroundings are not. What you see is light. That means everything in the neighbourhood, including the man and his cigar, will be bend. And not only light will be distorted like that. That's all very unhealthy. This is why the wormhole has to be huge: To escape from those forces. Francisco Lobo calculated the minimum radius of the throat of a wormhole for a human with a length of 2 meters to safely traverse the wormhole. It turns out to be 10 kilometers. I suppose that doesn't fit on the backseat of his '67 Chevy. I checked what values others came up with. Here are the results: Francisco Lobo: 10 kilometers. Energy conditions, traversable wormholes and dust shells by Francisco S.N. Lobo. You can find more of his work in Traversable Wormholes, Time Machines & Warp Drives. Peter Kuhfittig: 660,000,000 kilometers. Can a wormhole supported by only small amounts of exotic matter really be traversable? by Peter K.F. Kuhfittig. You can find more of his work in Traversable Wormholes & the Weak Energy Condition. Christopher Fewster and Thomas Roman: 100,000 kilometers. On wormholes with arbitrarily small quantities of exotic matter by C.J. Fewster and T.A. Roman. You can find more of their work in Energy Conditions & Quantum Inequalities I and Energy Conditions & Quantum Inequalities II. Lobo's paper describes a non-rotating wormhole. Titor's time machine seems to be based on rotation, so the last two papers better fit that model. Rotating wormholes tend to be larger than non-rotating ones. As you can read Fewster and Ford are not convinced that Kuhfittig's model actually works. Still the other two have sizes which won't fit a '67 Chevy. I don't dare to ask these gentlemen whether their wormholes would be safe on the surface of the Earth. ;) Click the above image for a full-size version. The original cartoon can be found here: On Titor and Time Travel by ChairLegOfTruth/PlanetNiles.
  11. What people seem to forget is that the Y2K problem and the Year 2038 problem are really different. The Y2K problem was mostly about software that didn't give/have room for the century digits OR used BCD representation for dates and time stamps in which to save space the century digits were ommited (sometimes in hardware, sometimes in software) OR did have a rollover problem in 2000 OR did have a problem with the leap-year calculation of 2000, etc. It depended on the applications, the harware platform, the operating system and the programming languages used what the problem exactly was. The year 2038 problem is about a 32-bit 2s-complement integer counter that flips to a negative number somewhere in 2038. You need the source of both the applications and the operating systems to correct it. The problem is present in Unix-like operating systems AND operating systems and software written in the languages C and/or C++ AND software written in other (scripting) languages created with C/C++. As you may have noticed 64-bit computers start to become mainstream. These computers will use a 64-bit operating system in which the 32-bit counter has been replaced by a 64-bit one. New applications written for that OS or ported to it will not have the problem. In 2038 it is likely that most of the old 32-bit software and hardware have died out. Only a few machines will be using old hardware or legacy software. It is therefore very unlikely that the Year 2038 problem will present a real threat to society. BTW: Chances are slim that in 2038 we'll use silicon based computers anyway. But that's a different discussion.
  12. No it wasn't. The IBM PC/XT 370 is even a hardware emulator. Specially equiped for the job with additional hardware that was not available on the IBM 5100. We are talking about 1983 here. Also you should read what I wrote about VM/PC. Very interesting.
  13. Here are two of Mallett's papers: Gravitational Perturbations of a Radiating Spacetime by Manasse R. Mbonye and Ronald L. Mallett. Weak gravitational field of the electromagnetic radiation in a ring laser by Ronald L. Mallett. Mallett didn't start his project yet. I think he has a problem with financing it. Except the popular articles about him the net hasn't any news. Even UCONN's site hasn't much real info about it. Ken Olum and Allen Everett found some problems with his theory. They wrote the following paper about it: Can a circulating light beam produce a time machine? by Ken D. Olum and Allen Everett. It didn't get much media attention. If you like stuff like that have a look at: Time, Time Travel & Traversable Wormholes.
  14. Is this related to the TV show?: The World's First Time Machine by Duncan L. Copp.
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