They don't. They could BUT their real use should be in a vacuum.
The Moon would be a good place to build them, but a nice long vacuum tunnel on Earth will work well ... but the expense would be terrific.
Maglev trains use powerful magnets to create a magnetic field that lifts and propels the train above the track. This technology allows the train to levitate and move without touching the ground, reducing friction and increasing speed and efficiency.
When you are on a train. When the train is in a station.
The purpose of making maglev trains float above the rail is to reduce friction, allowing for faster speeds and smoother rides. By using magnetic levitation to hover above the track, the train can move with minimal resistance, resulting in improved energy efficiency and reduced wear and tear on both the train and the track.
Maglev trains are powered by electricity. They use electric power to propell themselves by creating a magnetic field between the track and the train, allowing it to levitate and move forward without direct contact with the track.
A maglev train uses electromagnetic induction to create a magnetic field between the train and the track. This magnetic field allows the train to levitate and move along the track without any physical contact, reducing friction and allowing for faster speeds. By varying the strength of the magnetic field, the train can be propelled forward or slowed down.
The track is very smooth and precisely positioned. The train is streamlined. The engine is powerful and it is good for the earth!
Maglev trains are controlled by a combination of electromagnetic forces and sophisticated computer systems. The train uses superconducting magnets to create lift and propulsion, allowing it to float above the tracks and move without physical contact. Computer systems continuously monitor and adjust the train's speed, stability, and alignment with the track, ensuring smooth and efficient operation. Additionally, onboard sensors and trackside infrastructure provide real-time data for safety and control.
A maglev train needs to float over the track using magnetic levitation to reduce friction. This allows the train to move at high speeds more efficiently and smoothly, resulting in a quieter and more energy-efficient ride.
Electrons move fast around the nucleus at speeds close to the speed of light. The exact speed of an electron is determined by its energy level and its distance from the nucleus.
the speed of light
Very fast.
If the train is travelling at a constant speed the pen is also travelling at a constant speed and will drop straight down but if the train accelerates or brakes after the pen is dropped it will not drop straight down. This is because it has it's own inertia, it still drops straight but everything else has changed their inertia so it just looks as if the pen is different.