lets clarify. I do give a damn about FTL. But I dont think its necessary yet. I will be content with sub luminal Mach in my lifetime. We still have to colonize the whole solar system, including dozens of moons and hundreds of asteroids, before we need to worry about other star systems. WHILE we colonize the solar system, we can already dispel hundreds of Mach propelled probes to several different stars and wait for their dataIn fact, with Mach we would be able to build huge space telescopes that would probably be able to look at planets in other star systems with the same clarity we can see Mars (from Earth) nowadays. One step at a time is enough for me.
Quote from: aceshigh on 08/10/2011 04:09 pmI dont give a damn about wormholes. If we can reach near light speed easily and cheap, we can reach the edge of the universe in only 60 years (ship time)For interstellar flight to be economical and safe, we need FTL. Period. The kind of trip you're proposing is a one-way suicide mission (unless of course you know that there's a habitable Earth-like planet at your destination and you plan on colonizing it).If it's not possible, then you can kiss those dreams good bye. If I am not mistaken, Paul shared similar sentiments on the polywell forum.
I dont give a damn about wormholes. If we can reach near light speed easily and cheap, we can reach the edge of the universe in only 60 years (ship time)
FTL is completely unnecessary for interstellar travel. Firstly, the average distance between stellar neighbors is around 6 ly. Our closest is 4.2, or possibly closer (if Nemesis exists, or as many astronomers believe, there are brown dwarfs in interstellar space undiscovered as yet). At 0.9C, that is a shorter trip than Magellan's circumnavigation of the globe.as for knowing whether there are habitable planets at ones destination, thats a false argument, given how many extrasolar planets are being discovered now, within 10-20 years or so we'll be able to observe earth sized planets pretty closely so any interstellar voyage will know exactly what sort of planet is at their destination.Right now, we know of a planet in the goldilocks zone around GJ581, 20 ly away. While it is a jovian world, odds are that there is a moon in orbit around it that is habitable.
Quote from: mlorrey on 08/12/2011 02:36 amFTL is completely unnecessary for interstellar travel. Firstly, the average distance between stellar neighbors is around 6 ly. Our closest is 4.2, or possibly closer (if Nemesis exists, or as many astronomers believe, there are brown dwarfs in interstellar space undiscovered as yet). At 0.9C, that is a shorter trip than Magellan's circumnavigation of the globe.as for knowing whether there are habitable planets at ones destination, thats a false argument, given how many extrasolar planets are being discovered now, within 10-20 years or so we'll be able to observe earth sized planets pretty closely so any interstellar voyage will know exactly what sort of planet is at their destination.Right now, we know of a planet in the goldilocks zone around GJ581, 20 ly away. While it is a jovian world, odds are that there is a moon in orbit around it that is habitable.I'm not saying it's impossible, I'm saying it will be hard to justify manned interstellar flights economically given multi-decade voyages (or longer). Also, I was specifically responding to the idea of a trip to the edge of the universe. That really is a suicide mission.
GeeGee:Sonny White has a possible way around the warp drive/wormhole stability problem that may work out in practice, see attached paper. Past that even if conventional GRT analysis indciates that wormholes will be unstable, and don't forget that the last word in that venue won't be said until we have a vetted quantum gravity theory that will replace GRT, so what? Helicopters are by definition unstable, but we have learned over the years how to make them stable enough to make them a vital part of our transportation system. In a like manner I can think of at least a few ways to apply active negative control feed back loops to a wormhole generator that could stabilize them for our uses. It may take a bit to get it right, but this kind of engineering has been done before.Best,Paul M.
thats my issue with discussing FTL... let Woodward devote his entire time and brain power to propellantless propulsion at sublight speeds...
any news from Paul?
Just wondering if anything coming out of the LHC will have any effect on this discussion?I understand that the only important thing is the experimental results, and it sounds like Paul March and Jim Woodward are providing excellent results.However, with the possible or probably non-existance of the Higgs and the possible non-existance of super symetrical particles. Is that putting a damper on dark matter?If so, than would the Mach effect be able to explain the astronomical observations such as Galaxies rotating too rapidly?
Woodward explored this topic in his SPESIF-2011 Stargate paper that will finally be published later this year. Woodward is also writing a book on all of this that he hopes to publish next year.
Quote from: Star-Drive on 09/13/2011 03:50 am Woodward explored this topic in his SPESIF-2011 Stargate paper that will finally be published later this year. Woodward is also writing a book on all of this that he hopes to publish next year.Paul,I am on Woodward's mailing list now (thanks to Ron Stahl). Would you mind emailing me this stargate paper?
GeeGee:Pass me your e-mail address at my SBCglobal address and I will.Best,
Quote from: Star-Drive on 09/14/2011 04:08 amGeeGee:Pass me your e-mail address at my SBCglobal address and I will.Best,Just read it. It answered a lot of questions I had about approaches to making wormholes (i.e. if the idea of inflating a quantum foam wormhole to macroscopic size is feasible at all).I am curious about the relationship between the ADM model (incorporating spin) and the standard model, though. If the standard model is correct (we cannot say it is complete until the Higgs is discovered), does this imply the ADM model is not a realistic alternative? How does the success of the standard model affect the ADM model?