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Plasmacar

plasmacar-ride-onPLASMACAR.ORG.UK

The PlasmaCar is built to last: it’s made from state-of-the-art, high-quality ABS plastics, rugged and durable for kids on the go. It’s deceptively simple, too, both to look at and to operate. It sports six wheels, a seat, footrests, and a steering wheel. That’s it. There are no pedals. No gears. And best of all-batteries are not required.

The PlasmaCar comes in variety of colors like blue, green, purple, pink, and red, guaranteed to fit any active kid’s colour-scheme. Kids will like its looks because it’s vivid, sleek and aerodynamic, just like a racecar. They’ll love how fast it can go, and will delight in racing PlasmaCars with their friends (with adult supervision, of course).

Here’s how it works:

To propel the PlasmaCar, you rotate the steering wheel continuously from left to right. It also works in reverse. To zoom backwards, just switch the set of four front wheels around so that the larger ones are closest to the front of the car. To stop your PlasmaCar, just cease rotating the steering wheel and, when the car slows, put your feet on the ground to bring it to a full stop-easy as pie. Think of it as a Segway for kids. The PlasmaCar can go an exhilarating but kid-safe 2.8 meters per second; that’s over 10 km/h. Kids feel the need for speed-and this toy will give them exactly what they need!

The Science

The front wheels of the machine are connected to the handlebars by a lever, in such a way that they are located behind the axis of rotation of the steering column. This means that a torque applied to the handlebars will cause a lateral friction force by the wheels on the ground, a force parallel to the axle and perpendicular to the direction the wheels are rolling. If a component of this force points to the back of the car, the reaction force of the ground on the car (by Newtons’s “action/reaction” law) points partly forward and accelerates the car. This is the force that drives the car forward and it ultimately comes from the force you exert on the handlebars.

There is a bit of a trick to it. Having the wheel behind the axis of rotation of the steering column gives you a castering effect, so that if you push the machine forward without additional torque on the handlebars, the lateral forces will tend to bring the wheels back to the centre. The torque you have to apply to drive it is in the same direction, and in addition to, the castering torque. You quickly learn to torque the handlebars back toward the centre while the wheels are turned aside and not while you are rolling forward. Kids pick it up instinctively.

In-line skaters make a similar force by repeatedly pulling both skates laterally inward in a criss cross fashion in order to accelerate themselves. Skateboarders do a similar thing by pulling laterally inward while executing a series of alternating, tight turns.

PURCHASING OPTIONS

Customers may choose to purchase directly from our PlasmaCar Website – www.plasmacar.org.uk – or have the option of adding a PlasmaCar or two to your Perplexus puzzle order. As we do not charge postage on our PlasmaCar orders, the prices below include postage.


All orders for Perplexus Puzzles and Plasmacars will be send out by DHL.