Geared man-ball

(somehow inspired by "mouse dynamo")
((inspiration struck while reading said idea))

The idea is thus:
A large (8-10 feet) ball which is inside a larger ball, and is connected by an innovative, variable geared, power transfer unit. The advantages of this device are three:
The gears allow for higher speeds than achievable by simply walking ( or, of course, much more torque).
The maneuverability is increased over that of a bike, except for the small space transit. It also overcomes a problem of the Segway, the small wheels, and low road clearance.
It does not contribute to air pollution.

And now, a description of the force transfer device:
The FTD is positioned at the bottom of the geared man-ball, in between the shells. The FTD is an arrangement of the uni-directional torque mechanisms, 3-4 UDTM 45*-90* apart (across the bottom, not radially), which are pointing their torque axis inward. They are held in place by struts.
The UDTM is a wheal covered in wheels (covering wheels are at right angels to main wheal), attached via a gearing device, to another of these covered wheels. This allows the sphere to move in any direction desired.