【Indian Gambling Reviews】Why is the high-speed train shaking? Why is the high-speed train shaking more and more? In theory of relativity, two high-speed trains are traveling at high speed when crossing each other. Assume that one of the two trains A and B is stationary. Another car drove past this car at the same speed as the two cars. High-speed driving will produce airflow. This is aerodynamics, airflow... The high-speed train feels more and more shaking.