airplane

The world’s first high-temperature superconducting high-speed suspension engineering prototype vehicle independently developed, designed and manufactured by China has completed preliminary testing. This is a new type of ultra-high speed train. Its design speed is up to 620 kilometers per hour! Once put into use, it will save a lot of time for our travel. So why does this new high-speed train have such a high speed? How to ensure safety? So why does this new high-speed train have such a high speed When the resistance of a conductor is zero,…