No, you cannot see the breaking of the sound barrier. The term "sound barrier" refers to the point at which an object, such as an aircraft, moves faster than the speed of sound. The speed of sound, also known as Mach 1, varies with temperature but is approximately 343 meters per second (about 1,125 feet per second) at sea level.
When an object exceeds the speed of sound, it creates a shock wave, often referred to as a sonic boom. This shock wave is a rapid pressure change in the air caused by the object's movement. However, the shock wave itself is not visible to the human eye. Instead, it is the effects of the shock wave that can be observed, such as changes in air pressure, vibrations, or disturbances in the surrounding environment.
In some cases, the passage of an aircraft through the sound barrier may cause visible condensation or vapor clouds to form around the aircraft due to the sudden drop in air pressure and temperature. These clouds are known as vapor cones or shock collars. They can appear as a cone-shaped cloud surrounding the aircraft and are sometimes visible, especially under certain atmospheric conditions. However, it's important to note that the vapor cone is not the actual breaking of the sound barrier but a result of the pressure changes caused by the aircraft's high-speed flight.