| | May 19 Star Wars III will on the cinema. There is a weapon called lightsaber. It's a sword which is made lazer. And there is no steel. What do you thing about this. Can it be tru one they. Will somebody made it one day. |
| Nov 22, 2009 |
Lightsaber in life Physics Behind The Lightsaber Well after researching necessary components, your typical plasmaic blade could be confined by electromagnetic fields allowing structure to contain itself. If to blades collided the fields would repel each other with possible static electricity back and forth. Its heat is the only thing that keeps the human from wielding such a weapon. If I can somehow withstand a 350 degree atmospheric temperature within proximity of 5 feet and not get burnt, I c...
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According to classic Star Wars texts, the light saber was supposed to be a shaft of pure energy a couple of meters long. Here's why it can't be made of laser: Laser will not be visible to the naked eye - the way light sabers appeared, unless the air was filled with a thick layer of dust particles. It would never show up in empty space. Plus, you cannot limit the range of a laser beam to a meter or so. The beam would keep travelling in a more or less straight line till the energy dissipates or the beam gets scattered and reflected by some obstruction in it's path. On the other hand - even though present technology doesn't permit it - you could ideally condense plasma to contain itslef within certain pre-fixed dimensions. But this would lead to such intense heating of the sword shaft itself that the bearer would turn his own hands to pure charcoal in a matter of seconds. Also - even though plasma CAN cut through metal - that whole concept of plasma sword blocking another plasma sword is completely imporbable. 
i read some star wars books that took place after the movie-story and read some more. the lightsaber is a beam of pure energy, but i see no way how to of those swords could block eachother. maybe if the energy keeps moving around, which makes it a kind of chainsaw with energy instead of metal. if some one will find a way to make a real lightsaber one day(they?
just kidding) i would be happy to buy one for quite some money 
QUOTE Here's why it can't be made of laser: Laser will not be visible to the naked eye - the way light sabers appeared, unless the air was filled with a thick layer of dust particles Sorry to get nerdy.. but... If a Photon strikes an outer orbiting electron around a neucleus with the exact amount of energy (frequency) to elevate that one electron by one energy level, then that is what will happn. The photon will be absorbed, nd that electron will jump to a higher energy level. Then because of quantum physics (i dont pretend to understand this part) the electron must instantly lose its ener, and fall back to its origonal energy level, giving off the ecess energy as a photon, of exact frequenct that it absorbed, in a random direction. Im not certain, but i think the frequcny required to do this to a Nitrogen attom (the air is approx 70% nirtrogen) is a very nice shade of Green (visible light) Have you ever seen that photo of the green laser powerfull enough to put a dot on the moon ???? ALSO, have a look at the green laser pen at thinkgeek.com. ( i want one sooo bad ! ) ############################ ############################ CLICK THIS LINK... the nerds amungst you will NOT b dissapointed.... http://www.thinkgeek.com/gadgets/lights/5a47/action/21033ff/ http://www.thinkgeek.com/gadgets/lights/5a47/action/2103408/ http://www.thinkgeek.com/gadgets/lights/5a47/action/21046eb/ http://www.thinkgeek.com/gadgets/lights/5a47/action/210671c/ http://www.thinkgeek.com/gadgets/lights/5a47/action/2104b4d/ ############################# ############################# my nerd sence is tingleing !! buy me one of those, and you will have a fiend for life.
yeah i think there neva gonna come out with sumthing like that
Man...I want a lightsaber too. I think the biggest issue with building them is not the laser, or the plasma, or any other such part of the beam: its the power. Power storage and batteries have hard to improve physical constraints. The power draw for something like a lightsaber would be tremendous. Putting enough power for the thing into a small and light hilt is....well...less believable than the blade.
Which sucks, cause like I said...I want a lightsaber too. Not to mention how long an ipod or something would go if you had those type of batteries to power it...heh heh.
by the tim light sword things are invented, we will have invented matter-anti-mater reactors...
Clean energy, (matter + antimatter = 2 photons) many hundred thousands of times more energy per KG than weapons grade Uranium.. And if they can move the enterprise at warp 9.9.. im sure they could generate enough enegy to slice you up nicely. would now be a good time to mention that personally, i think star wars sucks ? LOL.
A lightsaber strikes me as much more buildable than a blaster seeing as we already have lasers that can cut things. It would just be a matter of broadening laser technology to work with other types of energy than visible-spectrum light. Granted that wouldn't be easy, but it's probably doable.
Bleh, I’ve always thought that the light saber was lazer… um… because it’s a common thing used in… sci fi movies. Not that I know anything about lazer, but all my life whenever I thought “lazer” I thought light saber.
There goes my myth… 
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Lightsaber in life
Physics Behind The Lightsaber Well after researching necessary components, your typical plasmaic blade could be confined by electromagnetic fields allowing structure to contain itself. If to blades collided the fields would repel each other with possible static electricity back and forth. Its heat is the only thing that keeps the human from wielding such a weapon. If I can somehow withstand a 350 degree atmospheric temperature within proximity of 5 feet and not get burnt, I can wield such a weapon. Another key part of a lightsaber is the activation. Its ionization process is more complicated than electric current into gas. A nuclear reaction must take place to ionize the gas even partially, therefore the chamber in which the ionization took place must be very confined to prevent any damage from exposure. Its a hard process and interesting. I will develop more as I uncover it. -reply by Jordan Weber After looking at a recent news article where the study of a phenominon called ball lightning has turned into the development of Plasma bolt based weapons which could potentialy shoot plasma bolts of size from 1 to 35 cm in diameter at upwards of 200 m/s and sustain for an (already do-able 1-2 seconds)They were looking at useing magnetic fields to further stabilize them for a longer period of time. Based off that article and the fact that there is a strong possibility that we may see such blasters in a decade or so (2 my guess), The electromagnetic fields used to stabilize the plasma blasts would also be repelled by a lightsaber assuming the lightsaber used a similar field to stabilize its plasma blade. Its all about plasma and which has the stronger magnetic field at the time and which has the most force.In actuality the plasma would never touch if the magnetic field were strong enough and the closer they get to eachother the stronger the repulsion that effects them both. ((==========================)) ((***************************)--------] ((***************************)--------] ((==========================)) Sure the heat would do the cutting but the magnetic field would to the reflecting and so forth. Though I'm not quite sure of the ramifications of useing it against metal weapons... Attracting unknown paper clips from all sides and so forth... On the other hand it may attract bullets and incinerate them in mid air as another level of protection. Metal belts would be a no no. That and glasses... Or... Metal onces...
physics of a plasma sword
Physics Behind The Lightsaber If you want to read how the light saber was envisioned, go here http://starwars.Wikia.Com/wiki/Lightsaber Like iGuest said if there was a way to cycle the energy into a loop(like the lightsaber in star wars was envisioned) back into the batteries, then provided you had a battery with enough power to begin with, it could be doable. Also on that page is an article about archaic light sabers, which were attached via power cable to a large battery pack that the wielder would wear. Lightsabers are able to block other lightsabers thanks to the magnetic fields used to contain and direct the swords energy, because the two opposing fields would repel each other. But most other objects don't have any kind of field to repel it, which is why you can cut a person in half with it like a hot knife through butter. The only limit to its cutting power would be the density of the material and the time it took for the blade to reduce it to vapor, which is why it takes some time to cut through a door. The problem with laser weapons would be reflective properties of some materials; fire a laser at the wrong object and it'll shoot back and kill you. Plasma bolts on the other hand would stick to and burn through the target. More effective, and has a wider impact radius then a thin laser. Of course they also have a much more limited range but considering most military fire fights take place within a hundred yards its really not an issue. It would have multiple uses as well; fire several plasma globs right onto the muzzle of a tank and watch it blow itself up as melted steel obstructs the outgoing shell. Would be effective at setting fire to buildings as well in an urban situation to force the enemy into open ground. Demon Knight Raziel
lightsabers
Physics Behind The Lightsaber all we need is somthing that gangenerate very intence waves of lighth along side with a mag feild that can stop arch light
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Physics Behind The Lightsaber Basically A lightsaber would have to be a made out of plasma, with an intense magnetic field holding it in place, this would repel other such fields, meaning you could have sword fights with them, not sure about the reflecting blaster shots though -reply by dude |
 Physics Behind The Lightsaber - Can it become true |
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