208 results found displaying 16-18
    
a brietzke
 Canada
Rubber band car Printer Friendly Version
As I am interested in any green energy concepts, I am pleased with current developments in hybrid vehicles. I would like to see the hybrid concept grow to include several different energy sources feeding power to one electric engine. This may sound goofy, but one idea I have is to use giant rubber bands as a sort of mechanical battery that could spin a generator that would feed the electric engine of a car. The bands would run beneath the car in long plastic tubes and could be wound with something like a power drill and a system of gears. Current electric cars are handicapped by the size a chemical battery can grow and still be safe and light. This would allow more potential energy to be safely stored and improve milage. While driving, if the battery power dropped to half or so, the rubber bands would be turned on and begin to restore power. If this sounds loopy, keep in mind that a one person glider was recently made that can fly up to two kilometers using a giant rubber band. The best part is that the extra weight is relatively minimal compared to metal parts.
Reward: A free car would be nice, but just making it would be fine! 

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Steve
 Austria
Sloping roads before checkpoints Printer Friendly Version
Before checkpoints, there's usually a traffic jam. People stop their engines, then after a few minutes, they start them, drive a few feet, and turn them off again. Or they keep the car running all the time.
My idea is to build in a slight gradient before checkpoints and other places that are known to cause traffic congestions. People can turn off their engines, and if the traffic moves on a tiny bit, they can simply loosen their handbrakes without starting the motor.
Of course it will cost a lot of energy to build the gradient, but in the long run, it should definitely pay off. Also, when building new checkpoints, the natural fall of the landscape might be considered.
Reward: The permission to drive by without having to wait in the line at all. 

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Matthew
 USA
The Aero Seat Printer Friendly Version
Have you ever seen those beds on T.V. that take your shape and it feels like you're sleeping on a cloud. Well I had the idea of putting that material onto a baby seat. I'm just curious would any of you buy my product?
Reward: your opinion 

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