Who would have thought a simple gyroscope would contribute to the incredible success of a vehicle – described as the “world’s first self-balancing human transporter” – that its designer envisions someday “will be the car what the car was to the horse and buggy.”

Dean Kamen, inventor of the Segway PT (Personal Transporter), took what appears at first glance to be a simple two-wheel hand truck, and used gyros and a complex series of sensors and microprocessors to create a machine that balances on its own. This ‘miracle’ of a balancing act allows the rider to lean forward, backward and left to right to control its motion without ‘falling over.’

Kamen, whose media appearances range from ABC’s Good Morning America to interviews with TIME magazine and everything in between, built a machine that is designed specifically for the natural movement of the human body. This shows in every facet of this unique ‘toy,’ which is quickly becoming a necessity for millions around the globe, from transit workers to police to pizza delivery boys. And let’s not forget its most important aspect: the fun quotient!

The Segway PT comes in a range of sizes and prices and is revolutionizing the world, one user at a time.

Just like the way the human body moves, with a system of fluid canals in the inner ear telling our brain when we’re leaning too far forward or backward, the Segway emulates this utilizing a system of microprocessors, tilt sensors and gyros.