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Thread: technical question about surface tension

  1. #1 technical question about surface tension 
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    is it possible to drive a car across a lake's surface? i would imagine a four wheel drive vehicle with the front wheels spinnng faster than the rear wheels would do the job, at a high speed, especially if the tires were slick

    think this could work? and if so, any idea what speed/weight ratio would do it?


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  3. #2  
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    Try it, You'll need a really deep lake though, so that the water is very still. A shallow lake will have many snall waves which will very easily break the surface tension.


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  4. #3  
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    Yeah try it and die
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  5. #4 Re: technical question about surface tension 
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    Quote Originally Posted by Carkid
    is it possible to drive a car across a lake's surface? i would imagine a four wheel drive vehicle with the front wheels spinnng faster than the rear wheels would do the job, at a high speed, especially if the tires were slick

    think this could work? and if so, any idea what speed/weight ratio would do it?

    yes, its done all the time in iceland with those custom hillclimber 4x4 also snowmobiles





    cant remember the name of the effect it uses, same as skimming stones on water

    they raced them on uk tv, one against the other over deep lake, just needs a run up to get speed, then dont let go of throttle

    so yes its done all the time :-D
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  6. #5  
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    is it possible to drive a car across a lake's surface? i would imagine a four wheel drive vehicle with the front wheels spinnng faster than the rear wheels would do the job, at a high speed, especially if the tires were slick

    think this could work? and if so, any idea what speed/weight ratio would do it?
    Absolutely! It has been done many times, but you have to be careful. You wouldn't want the ice to break! :wink:

    (Isn't it funny how we assume to understand an unprecise ambiguous question? Nothing in that question suggests liquid water.)
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  7. #6  
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    theres an equation for this, but i cant remember the name of it begins with B, it was firstly to do with skimming stones over water, but still applies. Its the reason bare footed water ski'ers stay up

    Someone must remember the name of it
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  8. #7  
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    heres a video of car over water


    http://www.youtube.com/watch?v=fdcKvA5y8v8


    knew id get it in the end :-D
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  9. #8  
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    Quote Originally Posted by billiards
    Yeah try it and die
    Bloody spoilt sport!
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  10. #9 ChatskiJ 
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    I presume no. Either you need to have to wide wheels to make the pressure to reduce.
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  11. #10 Re: ChatskiJ 
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    Quote Originally Posted by ChatskiJ
    I presume no. Either you need to have to wide wheels to make the pressure to reduce.

    check the youtube link a couple of posts up. it shows it in action :-D the sound drops out of sink a bit but still worth watching :-D

    someone called Lydéric Bocquet came up with a calculation after watching people skimming stones over water
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  12. #11 Thanks everybody 
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    I need to go to iceland now, i wanna see this for real
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