Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

When one travels in a bus, if he's sitting at any window, he will feel that the air is coming inside. If someone is standing at the open door of the bus, he'll also feel that the air is coming inside. If so much air is coming inside, why doesn't the bus blow due to internal pressure?

share|improve this question
2  
Thanks for that mental image when I go home today by public transportation! –  SinisterMJ May 15 '13 at 15:09

1 Answer 1

The more interesting question is, "What does air feel like when it is moving away from me?" The answer is that there is really no sensation at all. You feel all the air coming into the vehicle, because it has a bulk momentum with respect to your frame of reference. However, air being sucked out of those same windows and doors is being pulled from a large volume in many directions - it doesn't give much of a sensation, and so you don't notice it.

share|improve this answer
2  
I believe this is similar to the Feynman sprinkler effect. –  Chris Gregg May 15 '13 at 11:05

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.