Jarco Posted December 16, 2011 Share Posted December 16, 2011 Is it possible to build a light sabre just like those found in Star Wars? The key may be found inside of a crystal. Dr. Michio Kaku tries to: Enjoy! Link to comment Share on other sites More sharing options...
Sabster Posted December 16, 2011 Share Posted December 16, 2011 (edited) Is it possible to build a light sabre just like those found in Star Wars? It's impossible - and what he "builds" isn't a lightsber. It's like asking "can someone build a corvette? Well here's an Amtrack Train that does the same thing..." That, and old story is old. Edited December 16, 2011 by Sabster Link to comment Share on other sites More sharing options...
LinJe Posted December 16, 2011 Share Posted December 16, 2011 (edited) It's impossible - and what he "builds" isn't a lightsber. It's like asking "can someone build a corvette? Well here's an Amtrack Train that does the same thing..." That, and old story is old. He doesn't even "build" anything in that short 1:45 minute clip. He basically refutes the possibility of recreating a TRUE lighsaber by explaining the technicalities behind laser technology and how it works. So you either TLDR the video and responded in ignorance or you're just a troll. Edited December 16, 2011 by LinJe Link to comment Share on other sites More sharing options...
jarjarloves Posted December 16, 2011 Share Posted December 16, 2011 Is it possible to build a light sabre just like those found in Star Wars? The key may be found inside of a crystal. Dr. Michio Kaku tries to: Enjoy! my favorite part of his idea is that he wants to use a magnetic field to contain the plasma blade. ROFL imagine how funny the movies would have been if the light sabers had a strong magnetic field. Constantly getting stuck on eveyrthing metal. Yeah thats not even close to a light saber. Link to comment Share on other sites More sharing options...
EmpirePalooza Posted December 16, 2011 Share Posted December 16, 2011 i have always believed that a REAL light saber would emit a ridiculous amount of radiation Link to comment Share on other sites More sharing options...
thisisquick Posted December 16, 2011 Share Posted December 16, 2011 What if.... We put a mini black hole in the handle.... and it would keep the light from going too far out. But it wouldn't solidify it. One more problem solved for the lightsaber recreation. Link to comment Share on other sites More sharing options...
Domoto Posted December 16, 2011 Share Posted December 16, 2011 No matter what, problems with the laser itself aside, the one HUGE problem when trying to even conceive a real light saber, is making the laser itself stop. Link to comment Share on other sites More sharing options...
Tinno Posted December 16, 2011 Share Posted December 16, 2011 He forgot the force, which makes it plausible, he's just not strong enough with the force. Link to comment Share on other sites More sharing options...
x_ares_x Posted December 16, 2011 Share Posted December 16, 2011 The key to building a Lightsaber is not found in a crystal, nor is it known by Kaku or any mere mortal man. It is known by the diety known only as Battlebug, and I quote... "can you make sword in box light sword so sword come out when opened? then if sword is back after sword, use light saber on box, and saber will be boxed after sword is out." Link to comment Share on other sites More sharing options...
JNeale Posted December 16, 2011 Share Posted December 16, 2011 Even though some of these is not possible..below is a reasonable theory. The light is basicly a laser, we can already do a laser that goes strait with no difficulty. You combine a couple different colored lasers the same direction so you form a visible light. You have some type of device that adds a lot of additional weight/density that piggybacks to the laser light particals themselves. ( Kinda of like some sort of fuel that releases energy, its unstable so does not stay in its compressed form to the light particles ) The weight of the fuel attached to the light beam gives it its solid density and the release basicly releases heat which causes a burn type wound...very hot..vaporizing everything it touches. As this fuel cell decays seperating it from the light beam it speeds up the beam itself ( eventually faster then the speed of light. This is how you achieve warp speeds) The full process takes about one meter of space to fully decay and remove itself. This is where the beam would lose its solid density, and also not exist as visible light anymore because it went beyond the speed of visible light. Link to comment Share on other sites More sharing options...
Drethon Posted December 20, 2011 Share Posted December 20, 2011 We currently have no way to cause light to go so far and terminate. You would need some sort of field that causes massive amounts of light inside it. The best approach we currently have really is a contained plasma fountain which based on current theories would need a massive magnetic field to contain it and redirect the fountain back into the handle to complete the circuit. Really, a lightsaber that looks anything like star wars requires completely different technology. Metal swords with fields to deflect lasers and other projectiles would be a different matter... Link to comment Share on other sites More sharing options...
jarjarloves Posted December 20, 2011 Share Posted December 20, 2011 We currently have no way to cause light to go so far and terminate. You would need some sort of field that causes massive amounts of light inside it. The best approach we currently have really is a contained plasma fountain which based on current theories would need a massive magnetic field to contain it and redirect the fountain back into the handle to complete the circuit. Really, a lightsaber that looks anything like star wars requires completely different technology. Metal swords with fields to deflect lasers and other projectiles would be a different matter... i would say the bigger problem then having it come back is coming up with a blade that is able to deflect blaster shots and at the same time be able to hit against another light saber with out just going right through it. It needs to have the properties of a solid with out being a solid. Also if you use a strong magnetic field you need to somehow make it so it doesn't suck up all your lose change into the blade. Link to comment Share on other sites More sharing options...
Tavenji Posted December 20, 2011 Share Posted December 20, 2011 Is it possible to build a light sabre just like those found in Star Wars? The key may be found inside of a crystal. Dr. Michio Kaku tries to: Enjoy! Michio Kaku just likes to jerk off the nerds. Link to comment Share on other sites More sharing options...
Nukeo Posted December 20, 2011 Share Posted December 20, 2011 This discussion reminded me of: http://www.popsci.com/gear-amp-gadgets/article/2009-06/miniature-plasma-blowtorch-kills-plague-cleans-teeth Is a lightsaber possible. Ehh who knows, the power source would be the trick, and the blades being able to physically come in contact? I guess if the plasma was dense enough? Maybe it just condenses/compresses the local atmospehere a lot then ionizes it? Still we do have tools that use small bursts of plasma, so someday I'm sure someone will combine what technology we do have in an attempt to make one. As for the radiation comment, that explains why when the immediate danger is over they turn them off. I also find it funny people in game running around with them active, much more dangerous than a pair of scissors. Link to comment Share on other sites More sharing options...
dutrup Posted December 27, 2011 Share Posted December 27, 2011 What if.... We put a mini black hole in the handle.... and it would keep the light from going too far out. But it wouldn't solidify it. One more problem solved for the lightsaber recreation. not possible. Even in a Mini black hole the gravity would be too strong, and possible suck in the user or warp his sense of time... if it were even possible to create a black hole on such a small scale. The best way to make a "lightsaber" would be to follow the design that the toys use, having a blade that extends at the flip of a swich, then it would need something that super heats the extended blade and a second unit that cools the handle. I don't think it's entirely impossible if done this way. Still, not a real lightsaber, but close... and they'd all be red. Sweet. Link to comment Share on other sites More sharing options...
Haajib Posted December 27, 2011 Share Posted December 27, 2011 The Chinese man said first that they could build a lightsaber, then he said that he cant acording to the laws of physics, and i agree the design is wrong however. Protosabers - http://starwars.wikia.com/wiki/Protosaber Makes more sence logicaly than a normal lightsaber, still its still hard to do it but maybee. The real hope lies in these Vibroblade - http://starwars.wikia.com/wiki/Vibroblade These suckers makes perfect sence and is producible with todays technology Link to comment Share on other sites More sharing options...
Hiramas Posted December 27, 2011 Share Posted December 27, 2011 An electromagnetic field is actually the only way to contain plasma. When plasma touches anything not plasma, it either heats it up intensely or the plasma just falls out of its super headed state. The "lore" explanation for a lightsaber is a plasma blade, which is arced by a magnetic field back into the hilt. If the blade touches solid matter, the field and the plasma cause a reaction which "seems" like solid matter. Reflecting a blaster bolt is just accomplished by the magnetic field by the way. Link to comment Share on other sites More sharing options...
Sinister-Sith Posted December 27, 2011 Share Posted December 27, 2011 Hrm. From what I recall regarding the possibility of a real, working lightsaber is that it would require two things... a.) Plasma b.) A warehouse-sized power source Link to comment Share on other sites More sharing options...
jarjarloves Posted December 27, 2011 Share Posted December 27, 2011 An electromagnetic field is actually the only way to contain plasma. When plasma touches anything not plasma, it either heats it up intensely or the plasma just falls out of its super headed state. The "lore" explanation for a lightsaber is a plasma blade, which is arced by a magnetic field back into the hilt. If the blade touches solid matter, the field and the plasma cause a reaction which "seems" like solid matter. Reflecting a blaster bolt is just accomplished by the magnetic field by the way. again if you have a magnetic field it will suck in everything that is magnetic. Not to mention since it is a magnetic field and lets say its positive on one end and it hits a negative light saber magnetic field the two blades will become stuck. Or if they are both the same they will repel each other. It will have to be a very strong magnetic field btw if it is designed to deflect a blaster shot moving incredibly fast. Otherwise the blaster shot will have enough momentum to overcome the blaster shot and go straight through it. So again Magnetic field on a lightsaber = epic fail. Link to comment Share on other sites More sharing options...
pommopsicle Posted December 27, 2011 Share Posted December 27, 2011 o.0 everybody knows that a lightsaber is really just the force amplifyed through a power crystal. it said this in one of the books i think. and everybodys lightsaber is so fine tuned to thier own force, which is why it is extremely difficult to deflect other jedis lightsabers with your force, like in the cinematic. Link to comment Share on other sites More sharing options...
spencer_ Posted December 27, 2011 Share Posted December 27, 2011 According to the wiki, a lightsaber doesn't go out and stop, it goes out, loops, and comes back in. Its looped energy, which is much easier to do than stopping energy. "The blade typically extended about a meter before being arced by the blade containment field back to a negatively charged fissure ringing the emitter, where it was channeled back to the power cell by a superconductor, completing the circuit." Which is also the reason power cells are so rarely replaced. The lightsaber doesn't expend much energy unless the blade comes in contact with something. There are still a lot of problems with creating a real lightsaber, but the expanded universe guys have done a pretty good job of making it just believable enough that scientists are actually thinking it may one day be possible. And the day it is will probably be declared a global holiday by nerds everywhere. It shall be glorious... Link to comment Share on other sites More sharing options...
Haajib Posted December 27, 2011 Share Posted December 27, 2011 build a protosaber first, then use dark energy to contain the light in a lighsaber Link to comment Share on other sites More sharing options...
jarjarloves Posted December 27, 2011 Share Posted December 27, 2011 o.0 everybody knows that a lightsaber is really just the force amplifyed through a power crystal. it said this in one of the books i think. and everybodys lightsaber is so fine tuned to thier own force, which is why it is extremely difficult to deflect other jedis lightsabers with your force, like in the cinematic. This is an explanation I can actually accept. When you try to add real world science behind a weapon that goes against every law of physics it becomes ridiculous. However when you explain it using the rules of that universe it is acceptable. Just like how the Force is cool when Yoda Explains it in Empire but sounds bad when Qui Gon explains it in the Phantom Meance. Link to comment Share on other sites More sharing options...
LordMerrick Posted December 27, 2011 Share Posted December 27, 2011 The real problem is even if you managed to invent a working lightsaber its not actually safe enough for anyone to use. You're equally likely to cut your own body parts off as anyone else's, regardless of training. Which is why only force sensitives can wield them. But for argument's sake, it seems plausible the amount of magnetism being used to direct plasma could be so evenly matched to the plasma that there is no magnetic force left over to attract coins or any other metal outside the blade. Like two perfectly match sound waves canceling each other out. In this light it is possible to magnetically control a beam of plasma with not unwanted side effects. Aren't they currently working on a way to create a tool like this for industrial purposes? Or so I heard Link to comment Share on other sites More sharing options...
jarjarloves Posted December 27, 2011 Share Posted December 27, 2011 The real problem is even if you managed to invent a working lightsaber its not actually safe enough for anyone to use. You're equally likely to cut your own body parts off as anyone else's, regardless of training. Which is why only force sensitives can wield them. But for argument's sake, it seems plausible the amount of magnetism being used to direct plasma could be so evenly matched to the plasma that there is no magnetic force left over to attract coins or any other metal outside the blade. Like two perfectly match sound waves canceling each other out. In this light it is possible to magnetically control a beam of plasma with not unwanted side effects. Aren't they currently working on a way to create a tool like this for industrial purposes? Or so I heard while yes that is possible however you need the magnetic field to be strong enough to deflect blaster bolts or defelct other light sabers. That's where it ends up having to be extremely powerful and can suck in coins. If you just want it to keep the plasma in place then ok but if you want to actually do anything then it becomes unrealistic. Link to comment Share on other sites More sharing options...
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