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( , Sun 1 Apr 2001, 1:00)
Are you a QOTWer? Do you want to start a thread that isn't a direct answer to the current QOTW? Then this place, gentle poster, is your friend.
( , Sun 1 Apr 2001, 1:00)
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Science question
If cold air sinks and warm air rises, how can a hole between a cold basement and a warm ground floor room let cold air into the upper room?
( , Mon 20 Oct 2008, 17:55, 6 replies, latest was 16 years ago)
If cold air sinks and warm air rises, how can a hole between a cold basement and a warm ground floor room let cold air into the upper room?
( , Mon 20 Oct 2008, 17:55, 6 replies, latest was 16 years ago)
My guess
is that the top of your house is not airtight, so the warm air seeps out around windows and doors and such. Neither is your basement airtight, so air seeps in around things there.
The result is that your house acts something like a chimney, with the warm air drawing the cool air up from below- and the area around that opening has the cool air coming up in a fountain from it.
( , Mon 20 Oct 2008, 18:24, Reply)
is that the top of your house is not airtight, so the warm air seeps out around windows and doors and such. Neither is your basement airtight, so air seeps in around things there.
The result is that your house acts something like a chimney, with the warm air drawing the cool air up from below- and the area around that opening has the cool air coming up in a fountain from it.
( , Mon 20 Oct 2008, 18:24, Reply)
Yes
any movement of air across the top of the hole will result in air being drawn up 'from below'
( , Mon 20 Oct 2008, 19:24, Reply)
any movement of air across the top of the hole will result in air being drawn up 'from below'
( , Mon 20 Oct 2008, 19:24, Reply)
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