Vacuum trains are a type of transportation system that operates in a low-pressure environment, reducing air resistance. This design allows the trains to travel at very high speeds, potentially exceeding 600 miles per hour. The concept is often associated with maglev technology, which uses magnetic levitation to lift the train above the tracks, further minimizing friction. The idea of vacuum trains has been explored in various projects, including the Hyperloop, a proposed high-speed transportation system. By eliminating air drag, vacuum trains could offer faster and more energy-efficient travel compared to traditional trains and airplanes, making them an exciting prospect for the future of transportation.