[Mario] can take his train set on the road with him because he build ... and it’s requisite parts made plenty of room for the N-scale railroad (that’s really small stuff!).

The sensor was small enough for an N-gauge ... train to start rolling, but one could imagine the sensor could be incorporated into more advanced programming, like having the train speed up on ...

The faithful reproduction of the test train ... up and down both forward and backward, operate for many hours and have an appearance identical to that of the actual maglev on the N gauge scale.