Introduction to the entertainment wind tunnel: Next to the main building of the Science and Technology Museum is the largest entertainment wind tunnel in Asia and the first in the country. It is a new military-to-civilian achievement jointly created by the Aerodynamics Center and Mianyang. The diameter of the wind tunnel is 3.6 meters and the height is 6.5 meters. It can accommodate 1-4 people for entertainment at the same time. When the airflow enters the flight cabin at a speed of about 50 meters per second, it will blow people up and float freely in the air, giving people the feeling of floating in space.