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Topic: Real life puzzle: high building (Read 383 times) |
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phobos
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Real life puzzle: high building
« on: May 16th, 2003, 12:23pm » |
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You live on a high building, and noticed that whenever you leave your room's window open:
1. the room's door might open and shut normally (ok this is stupid, since there's no wind)
2. the room's door might shut rapidly (now that's of course, with a strong enough wind)
3. the room's door seemed to experience pressure from the other side when you try to shut it, and you'll need to exert more force - why? (assuming that only the windows in your room are opened)
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Leo Broukhis
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Re: Real life puzzle: high building
« Reply #1 on: May 16th, 2003, 3:14pm » |
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Does the door open inward or outward?
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phobos
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Re: Real life puzzle: high building
« Reply #2 on: May 16th, 2003, 5:05pm » |
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Opps, sorry to miss that point. It opens inward.
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Leo Broukhis
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Re: Real life puzzle: high building
« Reply #3 on: May 16th, 2003, 6:03pm » |
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Then my guess would be that it is Bernouilli effect, when the wind direction is parallel to the wall with the window.
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phobos
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Re: Real life puzzle: high building
« Reply #4 on: May 17th, 2003, 12:38am » |
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Alright  !
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