Stories
Slash Boxes
Comments

News for nerds, stuff that matters

Slashdot Log In

Log In

Create Account  |  Retrieve Password

How Lightsabers Work

Posted by Zonk on Thu May 05, 2005 12:22 PM
from the finally-an-article-we-can-all-use dept.
SirMutex writes "How Stuff Works explains the inner workings of the Jedi weapon of choice. Complete with alternate uses and safety considerations, the article is a welcomed companion for those still learning the ways of the Force." From the article: "Chances are that you have seen a lightsaber at one time or another, whether on the evening news or down at the local cantina. Therefore you know that a lightsaber is an amazing and versatile device that is able to cut through nearly anything in a matter of milliseconds. Have you ever wondered how these remarkable weapons work? Where does the energy come from, and how are they able to contain that energy in a rod-like column of glowing power?"
+ -
story
This discussion has been archived. No new comments can be posted.
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
 Full
 Abbreviated
 Hidden
More
Loading... please wait.
  • Cut, not Slash/Slice (Score:4, Interesting)

    by mfh (56) on Thursday May 05 2005, @12:23PM (#12443075) Journal
    FTA: "The most common use, of course, is slicing." ~ [howstuffworks.com]

    There is a big difference between slicing/slashing and CUTTING. According to Miyamoto Musashi [wikipedia.org], perhaps the greatest swordsman to have ever lived -- it is the act of CUTTING, and not slicing/slashing that makes a great warrior. Siege your opponent -- and cut them in two. It's all in the follow through.

    With light sabers, perhaps they allow slicing/slashing to be as effective as cutting? Let's examine this premise.

    A jedi who does not perfect his craft is not a jedi.

    A jedi who does not follow the way of great sword hands, falls in battle.

    A jedi who slashes, slices, is off balance.

    A jedi who cuts, falls like leaves on his opponents.

    The jedi master will only cut.

    So, please Mr. Lucas, when you are buying How Stuff Works adverts, keep in mind that the people at Slashdot will cut, and surprisingly we won't actually slash, after all.

    Hmm... cutdot.org anyone?
    • by Anonymous Coward on Thursday May 05 2005, @12:27PM (#12443126)
      On behalf of the rest of Slashdot:

      Huh?

    • by Enrico Pulatzo (536675) on Thursday May 05 2005, @12:46PM (#12443413)
      Well, since seeing Extreme Martial Arts on the Discovery Channel, I feel somewhat qualified to answer your post.

      Jedi do both cut and slice, depending on your point of view. If by cut you are referring to the act of swinging a blade in order to sever (which would seem to line up with Musashi's samurai style) and by slice you refer to the act of swinging a blade in order to damage but not sever, then I would say that Jedi do both.

      However, in my opinion, a slice by a lightsaber is fairly useless in the long run as any wounds incurred are instantly cauderized, so a prolonged fight would not bleed an opponent the way a traditional blade would.
      • by Chagatai (524580) on Thursday May 05 2005, @02:05PM (#12444258) Homepage
        Slightly OT, I know, but that XMA (eXtreme Martial Arts) show was totally crap if you hope to have a basis for martial arts. The show could be broken down into three main areas: cool special effects, pseudo-martial arts/gymnastics competition with points for sparring, and following a set of pretty boys around who look like they spend as much time waxing their bodies as they do training. The best example of this would be when the main person, a supposed expert in martial arts and a competition winner, goes to learn from a true Kung Fu master (Pui Chan) and can barely stand properly on the Mai Flower Posts only two feet off of the ground.

        The show was designed for eye candy and omits much of the history and function of forms of fighting, including the weapons (getting back on topic). Many weapons, such as the Chinese broadsword (dao) or Japanese katana, could be used for cutting (severing), slicing (think eviceration), and hacking (repeated strikes). If we take this to the Jedi, using Luke as our whining reference of choice, cutting is obvious when he loses his hand. Slicing is done when he opens the Tauntaun. Hacking is done when he gets Vader down in RoTJ on the walkway and repeatedly attacks until making his daddy a lefty again.

        I agree with the parent that the instant cauterization kind of limits the effectiveness of the weapon, but hey, who wouldn't want to pull a Black Knight routine on someone?

        • by h4rm0ny (722443) <h4rm0ny@tarddell . n et> on Thursday May 05 2005, @02:30PM (#12444558) Journal

          When I was a little kid I tried to work out how a light-sabre could be built. The problem I had difficulty with was making the beam stop at a fixed length.

          So I figured what was needed was a thin conductor that could extend from the handle and have a small circle / dome on the end. This would be charged to a massive potential and the top of the handle (other than where the thin central conducting rod emerged) would be oppositely charged. This would then create a plasma between the two. The only remaining problems once I'd figured that out were finding a material for the central conductor that was able to withstand heat in the 1000C's, thin enough that the whole still seemed to be made out of energy, yet rigid enough that it didn't become a lightwhip. That and finding a powersource equivalent to a maglev train that would fit in a small handle. Um, and would work in a vacuum. And some other things... but I was twelve, you know? I figured I'd work on them later and went on to try and decide what colour I wanted.
    • by TheLetterPsy (792255) on Thursday May 05 2005, @02:35PM (#12444622)
      Wrong -- everybody knows that Hattori Hanzo steel is the finest in the world.

      Only problem is, he doesn't make swords anymore . . .
  • 'Cause its Yoda sized...
  • Yeah, I did. When I was 10.
  • by OneBigWord (692129) on Thursday May 05 2005, @12:25PM (#12443111) Homepage
    There is no mention of the little yellow sticker on the end that says: "WARNING: Point this end away from face!"
  • Uhh? (Score:5, Funny)

    by sammykrupa (828537) <sam@theplaceforitall.com> on Thursday May 05 2005, @12:26PM (#12443117) Homepage Journal
    "Have you ever wondered how these remarkable weapons work?"

    No?

    • Re:Uhh? (Score:5, Insightful)

      by Mark_in_Brazil (537925) on Thursday May 05 2005, @02:28PM (#12444544)
      Exactly.

      The parent post was modded as funny (and it is), but I consider it insightful too. What was so cool about The Force in the original movies was that it was basically magic. Lightsabers too. When reading about King Arthur, I didn't have any questions about how Excalibur was forged. I don't care how the magic used by Gandalf and Saruman in LOtR works. It just does.
      That's why, to me, the biggest offense of Episode I wasn't Jar Jar or the stupid and ridiculously prolonged fish-eat-fish scene. It was less than a minute of stupid technobabble dialogue about chlamydians or whatever (OK, I know it's midi-clorians, but I get a chuckle out of this alternate name). In that brief bit of dialogue, the magic of The Force was ruined and reduced to a mere blood condition. Seriously... could a simple shot of penicillin have avoided the whole Darth Vader situation, and with it the Galactic Empire?
      I prefer The Force as it was in the original trilogy. It was magic! In Star Wars Han Solo even disparaged The Force as a "hokey religion" and lightsabers as "ancient weapons," saying that the combination was no match for a good blaster at your side. I wasn't as cynical about The Force as Han (and even Han changed his view, wishing "May the Force be with you" to Luke before leaving the Yavin IV base before the attack on the Death Star). I thought it was pretty cool. But I really never wanted to know the nuts and bolts of how it worked. Jeeze, if I wanted ridiculous technobabble "explanations" of how things work, I'd watch ST:tNG reruns and and get my fill of tetrions and subatomic bacteria and such.
      Actually hearing about midi-clorians ruined the magic of The Force for me. I don't see how Jar Jar can "ruin" people's memories of the original series, because one has nothing to do with the other. But the babble about the chlamydians did ruin The Force.
      It really surprises me people complain so much about Jar Jar and so little about the midi-clorians.
  • Lightsaber Depot? (Score:5, Interesting)

    by sg3000 (87992) * <sg_public&mac,com> on Thursday May 05 2005, @12:26PM (#12443120)
    > A lightsaber is a unique device, created by hand -- the
    > controls will be slightly different on each individual lightsaber
    > that you buy.

    This is a pretty cool/funny article. "A lightsaber can help convince an assailant that no means no."

    But I thought according to Star Wars lore, you couldn't "buy" a lightsaber. The Jedi (or Sith) had to build their own lightsaber. The story is the Jedi uses the Force to shape the lightsaber crystal and then uses the Force to put it into the cylinder. Because of the "Force" dexterity required, building a lightsaber is supposed to show that the Jedi has mastered the Force.

    That's why in Episode VI Darth Vader notices that Luke built a new lightsaber (and subtly threatens Luke with it), and says, "Indeed you are powerful" or something like that. If all the Jedi had to do is buy a lightsaber, then having a new one wouldn't be any more impressive than having good credit.

    Then again, I guess in Episode III (and the Clone Wars episodes), we learn the General Grievous collects lightsabers like baseball cards, so maybe the article was written especially for him.

    Although I can't imagine General Grievous slicing bagels with his lightsaber, Anakin, with the cavalier attitude towards using the Force he showed in Episode II, probably did.
    • by mfh (56) on Thursday May 05 2005, @12:29PM (#12443164) Journal
      If all the Jedi had to do is buy a lightsaber, then having a new one wouldn't be any more impressive than having good credit.

      And we all know how bad Luke's credit was, when he couldn't charter anything but Solo's crappy old dirt-bucket ship.
    • by notherenow (860367) on Thursday May 05 2005, @12:44PM (#12443380)
      Wow man. That's pretty damn impressive.

      The only reason I looked in here was to find who posted the funniest comment. I had no idea that someone would have accually posted something that would merrit a "+5 INTERESTING". But you did.I'm thinking that budweiser is gunna take this thing and run with...

      Today we solute you, Mr. +5 INTERESTING. You darelingly take on ficticious articles, and provide a realistic common ground. Who cares if you pull from other ficticious rhelms in order to do so. For without you, this /. article would not have been as fun.

      Chorus: Mr.+5 INTERESTIIIIIIIIING

    • by pilgrim23 (716938) on Thursday May 05 2005, @12:58PM (#12443540)
      Attention K*Mart Shoppers....
      a Blue Light Saber Special on Aisle 6...
    • by Winterblink (575267) on Thursday May 05 2005, @01:04PM (#12443622) Homepage
      That's why in Episode VI Darth Vader notices that Luke built a new lightsaber (and subtly threatens Luke with it), and says, "Indeed you are powerful" or something like that. If all the Jedi had to do is buy a lightsaber, then having a new one wouldn't be any more impressive than having good credit.

      Maybe that was what Vader was commenting on instead of his prowess with wielding The Force. We could interpret it as "Wow, you manage to keep a good credit rating while staging a rebellion against the Empire? Indeed you are powerful, as the Equifax has foreseen."
    • by EnronHaliburton2004 (815366) * on Thursday May 05 2005, @01:18PM (#12443763) Homepage Journal
      building a lightsaber is supposed to show that the Jedi has mastered the Force.

      Yeah, but with Gentoo you can build your own lightsaber with 'emerge lightsaber'.
      • Re:Lightsaber Depot? (Score:4, Informative)

        by Dun Malg (230075) on Thursday May 05 2005, @01:27PM (#12443880) Homepage
        Luke picks up and turns on the lightsaber that Obi Wan gave him upon first meeting him, with Obi Wan telling him that it was his father's. Luke has no problem turning it on and using it. Can this mean that it shows Obi Wan that he has the power of "the force"? It definitely shows that Luke needs no training in order to get it to work.

        You don't need to be a Jedi to use a lightsaber, only to build one. See Ep V, where Han Solo uses Lukes lightsaber to cut open the tauntaun.

  • by indytx (825419) on Thursday May 05 2005, @12:27PM (#12443132)
    that I started reading that and even clicked "next page." I've sunk to a new low. I really WILL read anything about Star Wars.
  • Heck Yes! (Score:5, Funny)

    by xbradlyx (867260) on Thursday May 05 2005, @12:29PM (#12443153)
    Sweet! Now if some could just post the Gummie Berry juice recipie, we will be all set.

    -bradly

  • This is stupid... (Score:5, Informative)

    by dhazard (860108) on Thursday May 05 2005, @12:29PM (#12443155) Homepage
    Just buy one from thinkgeek...

    http://www.thinkgeek.com/cubegoodies/toys/69de/ [thinkgeek.com]
  • by Nom du Keyboard (633989) on Thursday May 05 2005, @12:30PM (#12443173)
    Does it run Linux?

    After all, not only is there a geek quality to it if it does, but I'd hate to suddenly encounter the Blue Lightsaber of Death right in the middle of a fight with the Dark Side, and suddenly find myself needing to reboot.

  • Who's the bigger fool, the fool who writes a howstuffworks article on a fictional item, or the fool who writes a slashdot article about the howstuffworks article?
  • by SamSim (630795) on Thursday May 05 2005, @12:40PM (#12443321) Homepage Journal

    *schweeooooooorzzhhhh*

    *vwom vwooorm vwoosh woomv*

    *kza* *kjzt* *tzkch* *skrztle*

    etc.

  • by bsdbigot (186157) on Thursday May 05 2005, @12:44PM (#12443373) Journal
    Obviously, TFA is a guerilla advertising campaign for Parks Sabers [parksabers.com]. I'm curious, though, as to how much this campaign cost. Two things are certain facts:
    1. Parks Sabers has a successful campaign, judging from the /. effect that is starting to become apparent to visitors
    2. /. was the correct demographic to drop this marketing on: mostly single young men with disposable income and an overwhelming love for Star Wars crap.

    Since the Parks site claims no affiliation with Lucas and the official Star Wars marketing outlets, I'm wondering how long before he gets slapped with a cease-and-desist.

  • I see.... (Score:4, Funny)

    by nullset (39850) on Thursday May 05 2005, @12:50PM (#12443459)
    I see your schwartz is as big as mine!
  • Razor Burn (Score:5, Funny)

    by porp (24384) on Thursday May 05 2005, @12:51PM (#12443466)
    On a whim, I ditched my Gillette Mach 3 razor (those fucking replacement blades are expensive!) for a lightsaber about 2 years ago. I figured, hey, with the money I'm saving on blades, and the many tasks the multi-purpose lightsaber can perfom, how can I lose? Well, let's just say this. If you thought shaving with a dull razor gave you mean razor burn, shaving with a really, long fucking hot glow stick gives you far worse.

    Needless to say, I am back to using my Mach 3. Skin grafts cost far more than replacement razors. Trust me.

    porp
  • Spoilers (Score:5, Informative)

    by Sheepdot (211478) on Thursday May 05 2005, @12:54PM (#12443503) Journal
    WARNING: SPOILERS

    http://www.supershadow.com/starwars/episode3/spoil ers.html [supershadow.com]

    For a good history on jedi and sith, there is another page on the same site:
    http://www.jedipurge.com/ [jedipurge.com]

    The reason I mention this? There is a bit of history about lightsaber development that is pretty intriguing, including a "yellow" saber that has the ability to "actually slice through any other light saber". Good stuff if you're willing to deal with a few spoilers (mostly events between Episode 2 & 3) to learn more about the history of the Jedi and Sith.

    It gave me a new outlook on the prequels, and I'm finding that Phantom Menace really isn't as bad as I thought it was around 1999.
  • by DaHat (247651) on Thursday May 05 2005, @12:59PM (#12443559) Homepage
    If we are going to discuss lightsabers... one must point out the film Your Lightsaber and You [shockwave.com] over on Atom Films. To quote it's blurb: There's more to being a Jedi than mind tricks and meditation. You also have to know the proper method of handling your light saber safely! Tune into this informative industrial film on the finer points of opening up a proverbial can of whup-ass with your light saber.
  • by autophile (640621) on Thursday May 05 2005, @01:49PM (#12444137)
    and how are they able to contain that energy in a rod-like column of glowing power?
    New Jedi: (nerdy voice) Hey, ladies! Check out my new light saber! I can barely contain its energy in its rod-like column of glowing power! (snort, snort)
    Ladies: Creep!

    --Rob

    • by ahrenritter (187622) * <deinspanjer@gmail.com> on Thursday May 05 2005, @12:29PM (#12443156) Homepage
      appalled? hardly. It was a cute article. HowStuffWorks continues to be a somewhat useful resource to me. I doubt I will become incapable of determining the rare fictional articles from the real ones.
    • by stabChmo (861088) on Thursday May 05 2005, @12:31PM (#12443198)
      Note how the glowing part of the lightsaber casts a shadow [howstuffworks.com] on the ground... another great science article by howstuffworks.com!
      • by pclminion (145572) on Thursday May 05 2005, @01:17PM (#12443749)
        Note how the glowing part of the lightsaber casts a shadow on the ground... another great science article by howstuffworks.com!

        OF COURSE it casts a shadow! Light can't pass through it! If it could, how would it deflect laser blasts?

        I can't believe I'm arguing about fictional physics on Slashdot, but geez, the fact that it casts a shadow is completely consistent with its other properties.

        • by lxw56 (827351) on Thursday May 05 2005, @01:42PM (#12444047)
          It should cast a shadow for that reason, but you also notice the red "reflection" on the ashphalt. This should not be there - the saber should provide a slight red illumination all around. This illumination should be far less brilliant than the sun (hence still a shadow).

          The explanation, of course, is that the picture does not show an actual light saber, but a prop, for safety reasons.
    • by XorNand (517466) on Thursday May 05 2005, @12:42PM (#12443354)
      It's called media placement. The website in question derives it's revenue via ad sales. Therefore it's in their best interest to get as many eyeballs to their site as possible. So they decide to ride the latest Star Wars hype wave and create this bogus story. Some people think it's cute and email or IM it to friends. In other cases, online "news" websites link to it.

      Notice the "Photo courtesy Lucasfilm Ltd."? This is nothing more than a coordinated piece of PR. Now, the real question is: Is Slashdot getting a small piece of the pie by graciously helping perpetuate it? Considering the glut of obvious bought-and-paid-for submissions lately, it wouldn't suprise me in the least.
    • Oh get over it (Score:4, Interesting)

      by sterno (16320) on Thursday May 05 2005, @12:59PM (#12443556) Homepage
      It's fictional. Fine. We all know it's fictional, and nobody's going to go there and go "oooo look, they're real". Yeah they do seem to be whoring it up a bit, but that's life on the modern Internet I guess.

      The tragic thing though is to think about how much detail they have on how those lightsabers would theoretically work. I assume that those concepts all came from Lucas. And I think, maybe if he'd spent a little less time on figuring out how a lightsaber would work, and more time on figuring out how to write dialogue, the first two prequel movies would have been much better.
    • by HalfOfOne (738150) on Thursday May 05 2005, @12:39PM (#12443310)
      Han used a lightsaber in Empire to cut open that tauntaun that he stuck Luke in. Looks like he was pretty precise with it. Han is midichlorian-less, AFAIK.

      Now I will go and soak in bleach for awhile, in the hopes that if I wash enough of the dork smell off that my wife will come near me again.

      • by Skye16 (685048) on Thursday May 05 2005, @12:49PM (#12443439)
        I assumed he used the force to push the hot air away from him. That's why he was straining so mightily when he did it.

        Or maybe he just had to poop and was trying to hold it. I think they're both potentially valid theories.