Source | Urban Live Comprehensive Jimu News, Baidu Encyclopedia
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html On the morning of September 4, many netizens in Chengdu, Sichuan said they heard a loud noise, the glass was shaking, and the sound was like thunder. Related topics were posted on Hot search. On the afternoon of the 4th, the local meteorological department responded to Jimu News reporters and stated that no thunder was detected and the loud noise was not caused by a meteorological phenomenon.
Loud noise in Chengdu is on the hot search list (webpage screenshot)
Ms. She didn't know what made the noise. Because similar sounds had been made before, she didn't pay much attention.
Many other residents of Pidu District and Xindu District also said that they heard a loud noise in the morning. Ms. Wang from Wuhou District and Mr. Huang from Jinniu District told reporters that they did not hear the loud noise.
On the Internet, netizens in Chengdu said they heard a loud noise: "Just now, there was a loud noise in the sky over Chengdu. The sound was like thunder. Did you hear it?" "It was such a loud noise that the windows were shaking." Some netizens said: " I heard it, the coordinate is Pidu District, it feels like it is near us." However, some netizens in Jinniu District, Chenghua District, Longquan District and other places said they did not hear the loud noise.
A screenshot of the chat posted by a netizen said that a loud noise had just occurred in Chengdu (webpage screenshot)
On the afternoon of September 4, a reporter from Jimu News called the Chengdu Meteorological Observatory. The staff said that they did not hear a loud noise and did not detect thunder. Staff from Chengdu's Pidu District Meteorological Bureau and Xindu District Meteorological Bureau both said they heard loud noises locally, but no thunder was detected and the sound was not caused by meteorological phenomena. One of the staff members said, "The loud noise is more like a sonic boom, but it's not clear where it came from."
What is a sonic boom?
sonic boom (sonic boom) is also called "boom". The shock wave generated when the aircraft flies at supersonic speed is transmitted to the ground to form an explosion. When an airplane flies at a speed exceeding the speed of sound, the density waves of the sound emitted by the airplane cannot travel in front of the airplane, so they are all stacked behind the fuselage, forming a cone-shaped sound cone. When this detonation wave arrives, we hear all the accumulated sounds. In terms of hearing, this is a loud sonic boom.
The harm of sonic boom
When an aircraft flies at supersonic speed at low altitude, not only the people and animals on the ground can hear the deafening loud noise, which affects people's life and work, in severe cases, it can shatter glass and even damage weak buildings. , causing direct losses. The energy of a sonic boom is huge. The sonic boom produced by a fighter jet flying at supersonic speed at low altitude is enough to shatter the glass of doors and windows.
