The Air Powered Car and The Treadmill Vehicle.
The Treadmill Vehicle
Basically you have a treadmill, and underneath there are wheels. The faster you run the faster it moves the wheels--so you have a four-wheeled vehicle. No longer do you have to run in one place, instead you can get your exercise while riding. That's a lot more fun than simply just running.The Air-Powered Car (a nearly word for word description from the inventor):
The air sucks in from the side through little wings, and shoots out back to make the car go very fast. It uses no gas at all. It works like a turbine. It's a battery powered vehicle to get you started. and it has a billion cords -- like 50 feet so you can plug it in outside -- it's actually 100 feet long so if you don't have a plugger outside by your steps you can plug it inside and there's a button on the side so you can roll the cord in when you see a green light on the lights.

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