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> about railgun in reality

 
post Mar 2 2012, 06:05
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imnotgay



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what about the recoil?
is it has recoil? if so, then why does it have?
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post Mar 2 2012, 08:17
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cptkleenex




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More importantly, how do I shot web?
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post Mar 2 2012, 08:19
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grumpymal



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1.21 Jiggawatts?!
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post Mar 2 2012, 08:22
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cptkleenex




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Has anyone really been far even as decided to use even go want to do look more like?
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post Mar 2 2012, 08:48
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Pretty sure it doesn't have recoil because the way it applies force to the projectile is different. Guns use the expansion of gas in order to propel the bullet, which pushes back and causes recoil. A railgun's rail instead are getting pushed apart instead of backwards.
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post Mar 2 2012, 10:41
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Apples and such....
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post Mar 2 2012, 10:49
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English are good for talks.

I'm not sure why the OP is asking this, since the whole principle of a railgun is that it wouldn't kick back. Given how horribly energy-inefficient such a weapon would be, I don't see why anybody would want to make one. Go learn some wikipedia physics if you haven't already.

QUOTE(Kaosumx @ Mar 2 2012, 01:48) *

Pretty sure it doesn't have recoil because the way it applies force to the projectile is different. Guns use the expansion of gas in order to propel the bullet, which pushes back and causes recoil. A railgun's rail instead are getting pushed apart instead of backwards.


That is kind of a concern though, isn't it? If the rails push apart, couldn't the thing just rip itself to pieces if the force is sustained for long enough?

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post Mar 2 2012, 11:17
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railguns suck.

[en.wikipedia.org] This is the future, good people!
And more present than you'd think!
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post Mar 2 2012, 18:01
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Kaosumx



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QUOTE(FourThirteen @ Mar 2 2012, 03:49) *

English are good for talks.

I'm not sure why the OP is asking this, since the whole principle of a railgun is that it wouldn't kick back. Given how horribly energy-inefficient such a weapon would be, I don't see why anybody would want to make one. Go learn some wikipedia physics if you haven't already.
That is kind of a concern though, isn't it? If the rails push apart, couldn't the thing just rip itself to pieces if the force is sustained for long enough?


Theoretically, it could achieve much higher speeds than any other sort of weapon is capable of - significant fractions of the speed of light. It would be like launching asteroids.

You get VERY VERY strong rails and fix them in place. Still gonna come apart after a few shots cause of the heat from the electricity and force though.
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post Mar 3 2012, 01:02
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grumpymal



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Aside from the whole "magnetic repulsion between the rails due to the laws of magnetic induction" problem, linear accelerators suffer from the fact that you need a ridiculously high impulse charge to get anywhere. Every research lab that does work with this class of device have enormous capacitor banks that have to charge for a long ass time before they can fire. And then there's all the liquid nitrogen to cool everything because of ohmic heat. The problem isn't as simple as "hurr durr make the rails really really really strong".

I don't know why I'm replying seriously to this thread, but whatever.
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post Mar 3 2012, 02:58
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For every action, there is an equal but opposite reaction. Even though the projectile would be launched through magnetic pulses, there will be a force asserted on the barrel causing recoil.
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post Mar 3 2012, 07:57
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imnotgay



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a few days ago, the America has launched a real railgun.
and im pretty sure that the barrel has moved back a little distance.
thats why im asking this
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post Mar 3 2012, 19:12
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aiwotorimodose



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QUOTE(imnotgay @ Mar 3 2012, 12:57) *

a few days ago, the America has launched a real railgun.
and im pretty sure that the barrel has moved back a little distance.
thats why im asking this

few days ago? meh, you can even find a youtube video of real railgun test from few years ago.
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post Mar 3 2012, 19:15
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Setsuna F Seiei



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I can shoot people with conventional weaponry thank you very much. You go ahead and waste your time on this fancy schmancy technology.
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post Mar 3 2012, 20:32
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Msgr. Radixius



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I wonder if finding a safe and plausible way of using railgun technology to shoot nigs into space would be cheaper than all that fuel or whatever...
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post Mar 3 2012, 20:35
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Setsuna F Seiei



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For a second I thought of the literal implications of your words and said to myself 'well, they're already hard enough to see at night, imagine trying to find them in space!'
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post Mar 3 2012, 20:38
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If you're talking about mass drivers, that's basically what every science-fiction writer in the middle of the last century was talking about being the future of mankind in space. Basically a maglev slingshot to throw people and things into space instead of using those barbaric rockets.

QUOTE(Pseudoshy @ Mar 3 2012, 13:35) *

For a second I thought of the literal implications of your words and said to myself 'well, they're already hard enough to see at night, imagine trying to find them in space!'

LOL, me too.
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post Mar 3 2012, 20:45
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QUOTE(derpymal @ Mar 3 2012, 12:38) *

If you're talking about mass drivers, that's basically what every science-fiction writer in the middle of the last century was talking about being the future of mankind in space. Basically a maglev slingshot to throw people and things into space instead of using those barbaric rockets.


I'm open to that.
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post Mar 3 2012, 20:51
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grumpymal



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It'd be pretty cool, but NASA has no monies anymore because people don't care about space anymore. They're too busy being unemployed or paying $5 a gallon for gas.
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post Mar 3 2012, 20:55
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Msgr. Radixius



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I was very sad when I heard about NASA getting buttfucked :<
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