Subject: Explain the dynamics of the 'Dynabee'

A Dynabee is a sphere with a gyroscope inside. It spins freely on its axis 
like an ordinary gyro. However the points of the axis are inside another 
circular component free to rotate inside the sphere (with somewhat more 
friction than the inner gyro).Once spinning, this device accelerates when 
oscilated. There is great resistance tothis motion, but the gyro 
accelerates faster and faster. I can get over 10,000 rpm with no connection 
to the inner rotating Gyroscope.  These are sold in sporting goods s

Re: Explain the dynamics of the 'Dynabee'