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Author Topic: Gauss Guns  (Read 5926 times)

Offline Nobody's Confidant

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Gauss Guns
« on: 04/10/2007 17:43:47 »
From what I gather from numerous video games where these appear, these guns you electromagnetics to fire faster than the speed of light. So it's impossible to miss. Are these possible?


 

Offline DoctorBeaver

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« Reply #1 on: 04/10/2007 17:57:09 »
No
 

another_someone

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Gauss Guns
« Reply #2 on: 04/10/2007 18:03:51 »
Since light is an electromagnetic wave, and electromagnetic fields are being used to accelerate the projectile, thus how could an electromagnetic field be used to accelerate a projectile to a speed faster than electromagnetic waves?  It cannot be done.
 

lyner

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Gauss Guns
« Reply #3 on: 08/10/2007 12:22:02 »
How can you even consider believing in a video game?
I have a gold ring but I would never expect it to render me invisible!
 

another_someone

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Gauss Guns
« Reply #4 on: 08/10/2007 14:04:54 »
How can you even consider believing in a video game?
I have a gold ring but I would never expect it to render me invisible!

I don't think he said he believed in it - he merely asked whether such a concept was possible - i.e. it raised a question in his mind, rather than having created any certainty of fact.
 

lyner

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Gauss Guns
« Reply #5 on: 08/10/2007 16:45:01 »
Yebbut - Rdn00b may not believe it but shedloads of people DO.
Was I too tough on the guy? - sorry RDN.
 

Offline Nobody's Confidant

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Gauss Guns
« Reply #6 on: 08/10/2007 17:36:29 »
My prescious....My prescious......................................MY PRECIOUS! BAGGINS! WE HATES IT FOREVER!
 

lyner

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Gauss Guns
« Reply #7 on: 11/10/2007 12:53:14 »
What have I got in my pocket?
 

Offline Nobody's Confidant

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Gauss Guns
« Reply #8 on: 11/10/2007 17:48:54 »
*thinks* Sword!
 

Offline lightarrow

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Gauss Guns
« Reply #9 on: 11/10/2007 19:24:49 »
From what I gather from numerous video games where these appear, these guns you electromagnetics to fire faster than the speed of light. So it's impossible to miss. Are these possible?
1. To accelerate up to c a body with non-zero mass requires infinite energy.
2. When such a body would hit something, it would release a Huge amount of energy, so everyone on this planet would have noticed, if something of that kind had happened.
3. To move it faster than c is forbidden from laws of physics.
4. It won't be possible to use such a gun in air for bullet's speeds higher than ~ 100,000 m/s because the bullet would be soon destroyed by friction with air.
 

Offline Bored chemist

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Gauss Guns
« Reply #10 on: 11/10/2007 19:27:10 »
Gauss Guns certainly exist. They can't get things faster than light but they can get things faster than most guns (which are limited by the speed of the molecules that push the projectile. Once the bullet is going faster than the gas molecules they cannot catch up with it to push it)
http://en.wikipedia.org/wiki/Gauss_gun
 

Offline lightarrow

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Gauss Guns
« Reply #11 on: 13/10/2007 18:22:03 »
Gauss Guns certainly exist. They can't get things faster than light but they can get things faster than most guns (which are limited by the speed of the molecules that push the projectile. Once the bullet is going faster than the gas molecules they cannot catch up with it to push it)
http://en.wikipedia.org/wiki/Gauss_gun
I know it well. If you want, there is at least a site where it's described how to make one:
http://www.powerlabs.org/emguns.htm

but what I wrote remains valid.
 

Offline Bored chemist

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Gauss Guns
« Reply #12 on: 13/10/2007 20:25:35 »
Incidentally, I don't see how having a faster than light bullet (OK, I know it's impossible) would mean you couldn't miss.
You see the target because it emitted or reflected light in your direction. You see it as being where it was when that light left it. If it were as far away as the moon you would see it where it was roughly a second earlier. If it kept changing direction you couldn't be sure to hit it because you couldn't know where it is now rather than where it was then.
 

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Gauss Guns
« Reply #12 on: 13/10/2007 20:25:35 »

 

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