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1.  

   hmmm

   

   mhh5, Sep 8th, 2005 @ 7:27pm

   
   

   heh. thought this post was going to be about using stomach acids to actually create an internal human battery....

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2.  

   Bum Rush Power

   

   dorpus, Sep 8th, 2005 @ 7:42pm

   
   

   Couldn't the kinetic energy of crowds walking into a subway station on a treadmill propel a subway train? Crowds at Asian train stations are sometimes known to create random tsunami effects, e.g. when the last train is about to leave, which causes a shockwave to go through crowds, breaking bones and flinging people high into the air.
   
   Or you could drive through Michigan, where some street lights are twice as tall as normal and emit an ungodly amount of lumens, and it feels like a religious experience to have that thing shine down into your car.
   

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3.  

   Then there is this:

   

   googly eyes, Sep 8th, 2005 @ 8:08pm

   
   

   I want wuna deez
   
   The solar Scottevest

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4.  

   No Subject Given

   

   Daniel (profile), Sep 8th, 2005 @ 9:22pm

   
   

   theres all sorts of things you could do instead, for example stick a dunamo on the turnstiles to power well, next to nothing really so its pretty pointless.

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5.  

   Other unconventional power sources

   

   Pete Austin, Sep 9th, 2005 @ 2:30am

   
   

   Hamster-powered phone charger
   Water pump driven by kids' roundabout
   Wind Turbines
   (one of these is unreliable)

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6.  

   No Free Lunch

   

   NoDef, Sep 9th, 2005 @ 5:01am

   
   

   This has popped up everywhere, but I still don't get it. This backpack doesn't produce energy, it just converts 'wasted' energy from walking with a backpack. The more energy you want from the backpack, the more energy the user needs to 'waste' making the backpack even more difficult to carry. It seems one could just design a backpack which 'wastes' less enabling the user to carry more weight. (part of which might be a hand cranked generator which would be even more efficient [weight/power] at generating electricity than this backpack!)

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7.  

   Re: No Free Lunch

   

   Anonymous Coward, Sep 9th, 2005 @ 8:25am

   
   

   its for people who are already carrying a backpack, right? so you're carrying the stuff already, and walking for whatever reason - hiking, a soldier doing drills, whatever - why not harness that wasted energy to be used later?
   
   is this idea about saving wasted energy comparable to hybrid cars recharging when you use the brakes? i'm honestly not up to date on this, so let me know if i'm saying anything incorrectly - but the cars didnt used to do that. but once they realized they could harness the energy that was being produced, they did it and it made it more efficient and better overall.
   
   doesnt that same idea apply to this backpack stuff?

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8.  

   Re: Bum Rush Power

   

   Ivan Sick, Sep 9th, 2005 @ 8:53am

   
   

   No. No, it couldn't.

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9.  

   how about this

   

   Bill, Sep 9th, 2005 @ 10:02am

   
   

   a windup flashlight, with a port to charge your phone.
   
   
   http://www.modernoutpost.com/gear/details/mo_dynamo_5led.html

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10.  

    Re: No Free Lunch

    

    Anonymous Coward, Sep 9th, 2005 @ 10:04am

    
    

    Rather than regenerative breaking, this is more like running the air conditioner compresser off of the drive train of a car. I think the point of the original post was that one could just as easily redesign the backpack to reduce the amount of wasted effort, this doesn't apply to breaking where you must waste (or transfer) the energy to acheieve a goal.

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11.  

    No Subject Given

    

    Jasper, Sep 12th, 2005 @ 4:34am

    
    

    I'm waiting for the ultimate human-powered solution that will solve 2 of mankind's greatest problems at once: electricity from burning fat. "I need to get some pizza, my iPod's running low."
    

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12.  

    hello there

    

    tiffany sheppard, Feb 9th, 2007 @ 10:12am

    
    

    i think the project that you,ve made is the coolest ever i love that and i am doing the same one and i hope it is as good as yours
    
    P.S By tiffany loves the project

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13.  

    gyiujkhj

    

    bvb, Oct 15th, 2007 @ 3:42pm

    
    

    this is the worst site ever

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14.  

    nice page

    

    josh, Dec 1st, 2007 @ 5:36am

    
    

    Thanks it gave me alot of info

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15.  

    

    Josh, Jan 31st, 2008 @ 11:50am

    
    

    kool but it coulent happen

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