What are the advantages of maglev train compared with traditional train?

Compared with the traditional train, the maglev train has a series of advantages: it overcomes the speed limit of the traditional train; Non-contact operation overcomes the obstacles of bad weather (such as rain, snow or ice); Non-contact operation, no mechanical wear, reducing maintenance costs; Because there are no moving parts, the reliability of the system is greatly improved; Because only electricity is used, it is more meaningful for countries with tight oil supply; It can save energy, and the energy consumption per kilometer is only1/4 of that of aircraft or cars; The speed is greatly improved, the capacity of transporting passengers is increased, and the potential market is large; Noise and vibration are greatly reduced, which is beneficial to environmental protection.

Particle accelerator is the main equipment to study the basic problems of the universe and matter, and the United States is at the forefront of the world in accelerator construction. With the development of superconducting technology, 1988, the National Science Foundation of the United States approved the plan to build the Super Superconducting Collider (SSC), which is the most powerful particle accelerator so far, with a three-year budget of 3.2 billion US dollars. It is planned that 1999 superconducting collider will be put into operation. The Superconducting Collider is quite huge, with 53 miles of circular pipes laid underground. Superconducting colliders will accelerate two proton beams in opposite directions to a speed exceeding 99.9% of the speed of light, and superconducting magnets will bend and focus the proton beams and make them pass through a curved path. Superconducting magnets will produce a stronger magnetic field than ordinary ferromagnets, making the radius of curvature of proton beam smaller, thus making the size of the annular pipe smaller.