I AM WANTING TO START A SMALL 1.5-3.0V D.C. MOTOR BY SPINNING IT. IS THERE A SIMPLE WAY TO DO THIS? AN EXAMPLE WOULD BE TO HAVE A MOTOR HOOKED UP TO A MODEL CAR WHEEL SO WHEN THE CAR IS PUSHED FORWARD, IT WOULD MAKE THE MOTOR START DRIVING THE CAR IN THE FORWARD DIRECTION. WHEN THE CAR STOPS...