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    Imploding Train Car

    Other than just being awesome. How did they do it? Anyone out there that can explain how they generated the pressure?

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    Its scary how something as strong as a metal train car can crumple instantly. We humans can do some really scary crap!



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    Re: Imploding Train Car

    Without watching it......did you ever do the experiment in high school science class where you heat an aluminum can and then dunk it into cold water to crush it? They probably did something similar there, on a larger scale.



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    Re: Imploding Train Car

    There's a big hose hooked up to it, so they probably just evacuated it, and the atmospheric pressure crushed it. The train car was likely not designed to withstand external pressure...


    Last edited by jbhtexas; 04-23-2008 at 09:02 AM.
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    Re: Imploding Train Car

    I've seen a train car be crushed from steam as well (Boyle's law), but only a photograph of the result and not a video. This video shows it happening very quickly. I didn't think that Boyle's law would cause that kind of implosion speed but maybe it would. So what I've heard is that you can pump very hot steam into a car and then seal it up and as the steam cools, the steam changes state from vapor to liquid and, following Boyle's law, this creates a very low pressure in the car and then it collapses.


    Last edited by CyinCo; 04-23-2008 at 09:13 AM.
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    Re: Imploding Train Car

    I don't think those cars are built to withstand external pressure, so it's probably not that big of a feat to collapse one. It's still pretty cool to see.


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    Re: Imploding Train Car

    Would that still happen if the car was on a treadmill and not tracks?


    have you ever got caught outside In a strong rainfall? Yes or NO. If it"s yes, then you might half felt the pane of hard(tought) rain on you head. If it hurt"s then it"s tough. Yes or no. Okay I'm right and you know it.

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    Re: Imploding Train Car

    Quote Originally Posted by markshir View Post
    Would that still happen if the car was on a treadmill and not tracks?
    No, the car would take off and fly away.


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    Re: Imploding Train Car

    That's what I thought but I wasn't sure. What would happen if pressure outside the car changed in relation to the pressure inside the car? Would it still take off? Also, did you take into account the difference in friction?


    have you ever got caught outside In a strong rainfall? Yes or NO. If it"s yes, then you might half felt the pane of hard(tought) rain on you head. If it hurt"s then it"s tough. Yes or no. Okay I'm right and you know it.

    So alothough you attempt"ed to say you didn"t understnad, now you do. Fair enough?

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    Re: Imploding Train Car

    Years ago, when I went through airplane mechanic school, they showed a picture of "what happens when you leave uncalibrated pressurization test equipment hooked up and then leave" to a small jet. Basically, imagine a hangar with bits and pieces of airplane imbedded into the walls. The technician disabled the outflow valves, and the emergency valve on the pressure turbine they used had been inoperative long before, so they were manually turning it off once the pressure reached the desired level.

    The aircraft door and the engines were about the only thing still recognizable as a piece of an airplane.


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