Radial, Crossply, and Run-flat are all types of what?
Run-flat tire 200 miles driving while flat with limited speed. Run-flat tire A run-flat tire is a pneumatic vehicle tire that is designed to resist the effects of deflation when punctured, and to enable the vehicle to continue to be driven at reduced speeds - under - and for limited distances - generally between to , depending on the type of tire. There are three basic technologies currently available, described below. The origins of the commercial "self-supporting" run-flat tire started in 1935 with a tire that had a fabric inner tire. The tire was advertised as a protection against blow outs, a
Radial (radio) shortwave frequencies, have frequencies so low that any feasible antenna is necessarily short compared to the wavelength, the most common being a quarter wave vertical antenna. The radials at the antenna base provide a proper ground plane for the types of radio antennas used for long wavelengths. These electrically "short" antennas require "grounding" or "earthing wires" to function well. The radials are typically buried in the soil or laid on the soil in a flat, radial pattern. These wires are called radials, ground radials, grounding radials, ground system radials, or earthing radials. The ground system radials do not have to