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Kimmo Huosionmaa
The Maglev or Magnetic levitation transporter can change the railroads to the revolutionary way, and if those systems would work, the production of trains, what is faster than an airplane could be possible. The Maglev-trains movement mechanism is actually similar to the particle accelerator, what would pull the train above it.
This system is a gauss track, where magnets would levitate the train above the railroad, and at the same time, this system would accelerate this train. If those Maglev-trains would be set in the large tubes, what would be pumped empty, would thee be no gas, what would heat the nose of that train. And in theory, those magnet trains can get reach the speed of light, if there would not be very tight turns.
There are actually many technical problems with that technical solution about this train, and one of the biggest is, how that train would be stopped if there would be problems with magnets. In realistic scenarios, those trains, what is traveling in vacuum tube could reach the speed of Mach 12, and because there is no resistance of the air molecules, those trains would not be difficult to make.
But the vacuum tubes are problematic, because if there would be the leak in the tube, the air will be sucked in, and that would cause overheating. And if those trains must be stopped, the impact with the rails might release very much energy, what can destroy that vehicle in seconds. And if the stopping system would malfunction near the end station, the Maglev-train would impact to the wall in the speed of Mach 12, what would cause the terrible explosion.
In the last we must tell that time machine, that is called as the "train to the future". In the scenario, that was introduced in one BBC-document, and the link to that document is under the text, would the human race build in some day massive railroad across the equator, and then the train would accelerate in the speed of light.
That would cause-effect that the time inside this train will be slowing like Einstein predicted, and then that system works as the time machine. There have been rumors that in the CERN particle accelerator have been planned to use to accelerate small probes in the speed of light, and those probes would send us information about the future. Those rumors might be true, but if there would be malfunctions in the accelerator, the result would be devastating, if the egg-size probe hits the wall of the accelerator in the speed of light. This would be the theory, but nothing makes it impossible. And maybe tomorrow, we could build that kind device.
Sources:
https://en.wikipedia.org/wiki/Maglev
http://www.chinadaily.com.cn/a/201801/26/WS5a6a7b5fa3106e7dcc136b73.html
Japans maglev-trains: https://www.youtube.com/watch?v=SUBUTo82EQw
Train to the future: https://www.youtube.com/watch?v=KZ0gQevrPTo
Picture I
https://i.ytimg.com/vi/SUBUTo82EQw/maxresdefault.jpg
https://wordpress.com/post/travellingintimeandspace.wordpress.com/3234
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