Unfortunately, this is a poorly conceived question. The movement of the train through the stationary air causes turbulence around the train. It does not change the atmospheric pressure of the air outside the window (beyond the region of turbulence). Bernoulli's equation really has nothing to do with this question.skier07 said:
Bernoulli's equation is a mathematical formula that relates the pressure, velocity, and elevation of a fluid. It is named after Swiss mathematician and physicist Daniel Bernoulli.
When a train moves through the air, it creates an area of low pressure behind it. This low pressure pulls on the eardrum, causing it to pop outward. Bernoulli's equation explains this phenomenon by showing how the change in air pressure affects the eardrum.
Eardrum popping is caused by a difference in pressure between the inside and outside of the ear. On a train, the pressure changes more gradually as the train accelerates and decelerates, leading to more frequent popping. On a plane, the pressure changes more quickly during takeoff and landing, so the eardrum may only pop once or twice.
No, it is not harmful for eardrums to pop on a train. In fact, it is a natural and necessary process to equalize the pressure inside and outside of the ear. This can help prevent discomfort or even damage to the eardrum.
To prevent eardrum popping on a train, you can try chewing gum, swallowing, or gently blowing air through your nose while holding it closed. These actions can help equalize the pressure in your ears and prevent the popping sensation.