Some of you are familiar with the US FIRST Robotics organization, a program that introduces robotics to high school students. This years game/task involves playing on a surface that is VERY SLIPPERY, intended to effectively simulate "floating" in 1/6th earths gravity as if the robot was on the moon. The only objects allowed to contact the surface of the field - a special white polymer "is made of “Glasliner FRPtm” gel-coated, fiberglass-reinforced, polymer material. This forms a tough, rigid surface that has been specifically selected to have a low coefficient of friction with the acetal-treaded ROVER WHEELS used by the ROBOTS. (FIRST 2009 Manual)" - are wheels coated in the same slippery polymer. Standard forms of propulsion (all forms are required to use electricity, no liquids or gases) such as the motors will simply spin the wheels, providing very low agility. To top it off, the robot has to attach to a small (50lb?) trailer that rests on the same wheels. All in all, you can use any number of wheels you want and angle them any way you want (the axis of rotation the wheel resides around MUST be paralell with the ground), and the robot + trailer will weigh close to 200lb's. The coefficients of friction between the wheels and the polymer floor are .06 when "rolling" and .12 when "slipping / skidding' sideways. Videos and examples show robots sliding all over the place, smashing into walls, other robots, and game pieces. I require a superioir form of propulsion to simple electric motors and spinning wheels, or something that can provide a direct torque or impulsive energy to sufficiently re-orient this robot (static friction is nigh impossible to achieve). At the moment I have though of Gyroscopes (a speculative concept, and a real pain in the butt), creating downforce with a vaccum, and using sideways wheels as "brakes." Further questioning also brings up the question of whether or not more wheels would be better or not. Less fricition per wheel but more wheels... Hand me your thoughts physics guru's!