271 results found displaying 40-42
    
Brishar
 Canada
Yellow Light Delay Printer Friendly Version
Have you ever entered an intersection on a yellow light and then had traffic in front of you slow down so you couldn't get through before it turned red? Of course this is a rarity and yet at some time we all freak out and stress (as if driving isn't already stressful enough!) My idea is to have a traffic sensor that knows you're still in the intersection and delays the cross traffic green until you get out. Anyone entering on a red should still get a ticket but at least pedestrians and other traffic will be safeguarded against a possible tragedy. Such a smart intersection would likely only be used in a few places.
Reward: Safer roads 

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36°

    
tiretrax01
 USA
Electromagnetic Battery Charger Printer Friendly Version
On an electric powered car, make the drive shaft(s) into high power electromagnetic battery chargers. While driving on one set of batteries in the front of the car, the batteries are being charged in the back of the car. When the batteries in the front of the car are depleted, switch over to the batteries in the back of the car while the ones in the front charge. Add in a computer controlled circuit for switching circuits on the batteries.
Reward: Get one of the cars for free 

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63°

    
mtrobregado
 Philippines
Silent Alarm for Passenger Bus Printer Friendly Version
Robbery or any crisis often occur in passenger buses. My idea is to have a silent alarm that the bus driver can activate sending a distress signal to a police station providing it's location.

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42°

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