Holy time travel Batman!
ETT does the maglevs one better by sending its levitated capsules down guider tubes out of which the air has been sucked, creating a vacuum. Like maglev vehicles, linear electric motors in the track will use the attraction and repulsion between the track and the capsules in a coordinated manner to propel the capsules forward. But because there is virtually no resistance in the evacuated tube, once the train gets up to speed it can just coast. Not only does ETT lack an engine – and a need for fossil fuel propulsion – but because it can glide along almost indefinitely through the vacuum it takes full advantage of Newton’s age-old “an object in motion stays in motion.” That is, until someone hits the brakes.