
Magnetic levitation (physics)
Magnetic levitation (maglev) is a method of suspending objects in the air using magnetic forces, eliminating the need for physical contact. It works by generating magnetic fields that repel or attract each other, creating an upward force that balances gravity. In transportation, like maglev trains, powerful electromagnets on the train and the track work together to lift, guide, and propel the train forward at high speeds with minimal friction. This technique allows for smoother, faster, and quieter movement compared to traditional wheels and tracks. Magnetic levitation is also used in various devices for contactless movement and precise positioning.