Remember the toy cars with the "ballon" attachment? Basically it was a low air compression vehicle. As the air was exhausted through the aperture it generated thrust and your little toy car took off like a bat out of hell.Here is the modern grown up version. Associated Press at the Geneva Motor Show reports on the Airpod, an inexpensive compressed air vehicle that gets 137 miles on 46 gallons of compressed air with zero tailpipe emissions. A newer planned version will be a four wheel hybrid with a small conventional engine to extend the range of the vehicle.
