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Posted: 10/6/2004 11:24:01 AM EST
Ask Us General Physics

By NASA.


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Make a Light Saber?
Link Posted: 10/6/2004 11:26:23 AM EST

Make a Light Saber?
How do you make a real light saber like those in the Star Wars movies?

There is no way to make a light saber. To a physicist, a light saber looks like a square wave of light, but it would require a nearly infinite combination of wavelengths and a very high energy density, and we just don't have any way to generate that.

Then could I use plasma to make the blade?

You would have to have some way of containing the plasma, or it would just dissipate. A strong magnetic field would do it, but even if you could generate the properly shaped magnetic "bottle" external to the light saber handle, the magnetic bottle would interact with matter (walls and such) in a way that light sabers don't. Plus the light sabers would give off a tremendous amount of heat that wouldn't be stopped by the magnetic bottle. A light saber is fiction and will be for the foreseeable future.





Sorry, Wedge!
Link Posted: 10/6/2004 11:26:48 AM EST
Man, I could easily waste all day browsing around that site.

(Backing slowly away from the computer.)
Link Posted: 10/6/2004 2:10:48 PM EST
Yes, just a few days around here and you can absolutely FILL your head with useless imformation. learn some shit occasionally too, not in this thread mind you.. but it can be done.
Link Posted: 10/6/2004 2:14:01 PM EST

Originally Posted By Zaphod:

Make a Light Saber?
How do you make a real light saber like those in the Star Wars movies?

There is no way to make a light saber. To a physicist, a light saber looks like a square wave of light, but it would require a nearly infinite combination of wavelengths and a very high energy density, and we just don't have any way to generate that.

Then could I use plasma to make the blade?

You would have to have some way of containing the plasma, or it would just dissipate. A strong magnetic field would do it, but even if you could generate the properly shaped magnetic "bottle" external to the light saber handle, the magnetic bottle would interact with matter (walls and such) in a way that light sabers don't. Plus the light sabers would give off a tremendous amount of heat that wouldn't be stopped by the magnetic bottle. A light saber is fiction and will be for the foreseeable future.


Sorry, Wedge!




Even rocket surgeons can be stupid. You can buy light sabers at Wal Mart for crap sakes.
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