article_snippet.sent: Maglev trains use magnets to lift the carriages above the track.
article_snippet.sent: A Japanese bullet train was able to go so fast because A Japanese bullet train made use of a magnetic charge to lift and move A Japanese bullet train above a guideway.
article_snippet.sent: Andy Kunz, president of the US High Speed Rail Association. told the Los Angeles Times that maglev trains have proved to be expensive, power-intensive, and potentially unsafe. '
article_snippet.sent: The problem is if you have one tiny little settling of the Earth - which happens all the time because of plate tectonics - that can create little movements in the maglev system, which can send trains crashing into stuff,' Andy Kunz, president of the US High Speed Rail Association said.
article_snippet.sent: A new development called super-maglev could be set to push the limits even higher.
article_snippet.sent: Last year, HTS Maglev was been tested successfully by the Applied Superconductivity Laboratory of Southwest Jiaotong University.
article_snippet.sent: The technology works by using a vacuum tube to decrease the speed limitations imposed by air resistance on regular maglev trains. '
article_snippet.sent: ETT (Evacuated Tube Transport) systems might allow HTS Maglev trains to attain speeds in a new order of magnitude, such as super-high 3,000km (1,800 miles) per hour, which could be applied to some military or space launch systems,' the researchers write.
article_snippet.sent: Pictured on the left is a test model HTS Maglev train from 2003.  
article_snippet.sent: Maglev trains use magnets to lift the carriages above the track.
highlights_snippet.sent: Seven-car train made use of a magnetic charge to lift and move Seven-car train above a guideway .
  