China News Service, Shijiazhuang, February 24 (Xiao Guangming, Li Yang) On the morning of the 24th, there was a loud noise over Qinhuangdao City, Hebei Province.
The Qinhuangdao Emergency Management Bureau verified with Shanhaiguan Airport that the reason for the loud noise was the instant sonic boom of the aircraft flying at high-altitude supersonic speed.
The aircraft sonic boom is the explosion sound produced by the aircraft at the critical point where the speed of sound exceeds the speed of sound. During the flight of the aircraft, a strong wave will be generated, and when it reaches the ground, there will be an explosion sound. caused.
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