# Homework Help: Power of atmosphere and skyscraper windows?

1. Jul 22, 2009

### graphicer89

Power of atmosphere and skyscraper windows???

Hi i was wondering about a question dealing with atmosphere and windows....If you could help me out by understanding somethings id really appreciate it..thanks alot...

In a large cities when wind is forced to blow between two rows of skyscrapers, windows in the skyscrapers are sometimes blown outwards. Why does this happen? Is it something with the atmoshpere and pressure of air??

2. Jul 22, 2009

### Hootenanny

Staff Emeritus
Re: Power of atmosphere and skyscraper windows???

You are indeed correct. The air passing over the outside of the window causes a decrease in pressure leading to a higher pressure inside the building compared to outside, thus forcing the glass outwards.

3. Jul 22, 2009

### RoyalCat

Re: Power of atmosphere and skyscraper windows???

Doesn't the wind increase dramatically in speed when it's forced through the narrow gap between two buildings, thus increasing the pressure difference?

4. Jul 22, 2009

### Hootenanny

Staff Emeritus
Re: Power of atmosphere and skyscraper windows???

I'm not entirely sure whether that is the case, but it certainly would make sense, intuitively.

5. Jul 22, 2009

### RoyalCat

Re: Power of atmosphere and skyscraper windows???

Heh, I'm just going by something I heard on a Discovery show, though, heh, so the OP should take it with a grain of salt. ^^;

6. Jul 22, 2009

### graphicer89

Re: Power of atmosphere and skyscraper windows???

Thanks both of you...really appreciate the insightfulness of this questions...i just remembered Bernoullis Principle and how it applies to this questions...i think ....thanks though keep a look out for me i will be posting some more questions...thanks again