First of all, the principle of levitation mentioned in this video is to use magnetic force. Everyone should be familiar with the law of magnetic field. Many countries in the world are operating maglev trains. I believe this technology has gradually become familiar to people. But the maglev train can be suspended because there is a superconducting magnetic track under the train. The magnetic track repels the bottom of the car, making the car suspended in the air, reducing the friction with the rail, and making the train provide higher speed at the same power. This is the second, and the benefits of magnetic levitation are not limited to this.
Ok, let's cut back and talk about this Volkswagen suspension car. In the video, it is said that there are abundant magnetic field resources underground in Chengdu, and the suspended vehicle uses the "natural magnetic track" made of natural magnetic ore to suspend the car body in the air. At this time, there was a problem.
The magnetic pole of natural magnetic ore is unstable, maybe this is N-level upward and that is S-level upward, or maybe the N-pole and S-pole are on the same horizontal plane. If the bottom of the car is to be suspended, the magnetic pole of the bottom of the car must be the same as that of the underground. In order to travel, the suspension vehicle must be able to automatically switch the magnetic poles at the bottom of the vehicle. So if the magnet under the car is to switch poles, it is necessary to use superconductor electromagnetism. What can the car body use as power supply? Nuclear energy? Of course, it's impossible. Optical nuclear reactor is a giant. Therefore, in order to provide power for the suspended vehicle, at least we should break through the existing energy storage technology. Moreover, after the underground natural magnetic minerals pass through the surface, the magnetic field has been weakened a lot and the utilization rate is not high. How difficult is it for a car to overcome its own quality and two adults? Then, the Volkswagen suspension vehicle, at least, needs to borrow wind power to realize suspension and driving.
In fact, I thought about the method of magnetic levitation several years ago. Because of the above points, I gave up this scheme and replaced it with static electricity. Because one principle of static electricity is related to magnetic field, that is, like charges repel and opposite charges attract.
The idea at that time was to build a flying saucer. The plan is to erect an antenna at the top of the flying saucer, which will release static electricity into the air above the flying saucer. At this time, air molecules with static electricity will be attracted by the metal shell on the flying saucer. At this time, the flying saucer will rise upward because of the pulling force of air molecules. When the lifting force is greater than the mass of the flying saucer, the flying saucer can be lifted off. Moreover, static electricity is better controlled than magnetic levitation and is almost unaffected by conditions. As long as there is air, it can fly. However, to achieve this, we still need to break through the battery storage technology.