Steering wheel first button added to the steering wheel was a switch to activate the car's electric horn. Traditionally located on the steering wheel hub or center pad, the horn switch was sometimes placed on the spokes or activated via a decorative horn ring which obviated the necessity to move a hand away from the rim. Electrical connections are made via a slip ring. A further development, the Rim Blow steering wheel, integrated the horn switch into the steering wheel rim. In 1966, Ford offered the Highway Pilot Speed Control Option, with steering wheel pad mounted rocker switches, on its Thunderbird. Uniquely,
Electrodynamic wheel track that can inductively create suspension and propulsion forces simultaneously. The parameters that affect the performance of this electrodynamic wheel are studied using a 2-D steady-state finite-element method. Electrodynamic wheel An electrodynamic wheel is a type of wheel proposed for use in electrodynamic levitation maglev. Unlike a conventional wheel, an electrodynamic wheel has a rim studded with magnets of alternating poles. As the wheel spins, which is done at a rate so that there is slip between the rim and the guideway's surface, magnetic fields are induced in the conductive guideway which repels the wheel. Depending on the spin, electrodynamic