Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

Ignoring the whole movie situation along with the power demands, what do you think Iron Man's repulsors use to "repulse" his targets? I don't think they are lasers or electric beams, or "reverse magnetism", but I'm guessing its some sort of focused sonic waave or a shock wave generator.

share|improve this question
add comment

closed as off topic by mbq Jun 26 '11 at 18:51

Questions on Physics Stack Exchange are expected to relate to physics within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

2 Answers

I bet it's imagination. In imagination-land everything is possible :-)

In reality them most compact & efficient are conventional weapons. Then probably only 10kW CO2 laser, which is real, but not as cool as in movie.

share|improve this answer
    
I know its fake, but if there were to be a real suit, which would it use? Like a sonic or pressure wave. –  exosuit Jun 25 '11 at 18:59
2  
If it were real, we would stop on nuclear fusion :-) This alone already can make all physicists happy. :-) This weapon - could be compressed air blow, but it's sounds like a joke :-) Also, in reality any weapon of this kind would have corresponding 'kickback'... –  BarsMonster Jun 25 '11 at 19:02
    
Obviously you would use pressure waves to “absorb” the kickback along with the vibrations :) –  gurghet Jun 26 '11 at 0:21
add comment

As pointed out by BarsMonster ,newton's Third law says the iron man will be acted upon by the equal and opposite force which he is exerting on any body. Hence its just mere imagination.

share|improve this answer
    
well the opposite force can always be cancelled with an electronically controlled thrust –  lurscher Jun 26 '11 at 23:06
    
But I guess they dont show it happening. Hence does not apply to iron man –  bubble Jun 27 '11 at 6:19
    
in some of the comics they said he had some way of locking his arms into place and lowering his center of gravity –  exosuit Jun 27 '11 at 19:14
    
Are you trying to explain above phenomenon or its something unrelated you are talking about –  bubble Jun 27 '11 at 19:17
    
as in by locking his arms and lowering his center of gravity, he wasn't as affected by the reaction to the repulsor blast. In the movie he gets blasted backwards by it too, so there is some sort of knockback despite what people say –  exosuit Jul 6 '11 at 4:12
add comment

Not the answer you're looking for? Browse other questions tagged or ask your own question.