“The corial does not touch the road,” explained Rador. “It is lifted so far”⁠—he held his forefinger and thumb less than a sixteenth of an inch apart⁠—“above it.”

And perhaps here is the best place to explain the activation of the shells or coria . The force utilized was atomic energy. Passing from the whirling ball the ions darted through the cylinder to two bands of a peculiar metal affixed to the base of the vehicles somewhat like skids of a sled. Impinging upon these they produced a partial negation of gravity, lifting the shell slightly, and at the same time creating a powerful repulsive force or thrust that could be directed backward, forward, or sidewise at the will of the driver. The creation of this energy and the mechanism of its utilization were, briefly, as follows: