0 Members and 1 Guest are viewing this topic.
Atmospheric pressure is really fairly wimpy, so sealing it should not be such a big deal.The main advantage is the gigantic savings because of the lack of friction loss. I think the propulsion would have to come from periodic linear induction motors in the track acting on passive conductors on the vehicle. It should be possible to achieve levitation by induction as a result of the vehicle's speed. Wheels of some sort might be OK, but only to get started.I think you'd want to keep it pretty simple, like only one vehicle (or train of vehicles) in a tube at any time, with the "train" shuttling back and forth between two points only.The whole idea does sound a but strange, but if we were not used to zipping around in jet aircraft all the time (that really are not all that "zippy") it probably would not strike us as all that strange at all. The development of the jet engine to its current state was probably a lot more difficult than this.Unless we decide that travel is inappropriate and we are only going to permit "virtual travel", something like this is the next logical choice. Planes are nasty polluters, they consume huge amounts of energy, and economics prevent them from going any faster. The current high speed trains are (believe it or not) not all that much better in terms of energy consumption, and they can't go much faster either without turning into aeroplanes, so if not this, where do we go from here?
Anyway, as I said, if not this, what else?
Most of the time consumed in air travel is in getting to the airport sercuity etc once you autualy get on the vehicle it makes little difference whether it travels 200 or 2000mph for trips of up to 300 miles trains or cars are often the quickest.
When I lived in Hemel Hempstead I had to make frequent trips to Glasgow, I found that I could drive there more quickly than taking the train but the train cost slightly less and there was always the problem with the sloth police.I well remember the trams an excelent way to travel both in London, Glasgow and Viena.