| Topic: |
Science > Physics |
| User: |
"Fran Lorin" |
| Date: |
08 Sep 2005 11:24:32 AM |
| Object: |
Bagpipe startup |
can someone explain the phenomenon when a bagpipe player must smack the
bag to "start up" the sound?
also, is this phenomenon the same as when using eye wash squirt bottles
that can either drip or give full stream, especially when the liquied is
suddenly expelled?
thanks, Fran Lorin
www.patent.0catch.com
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| User: "Pyriform" |
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| Title: Re: Bagpipe startup |
08 Sep 2005 04:29:44 PM |
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Fran Lorin wrote:
can someone explain the phenomenon when a bagpipe player must smack
the bag to "start up" the sound?
How else do you suppose it can be persuaded to emit that God-awful
racket?
"I understand the inventor of the bagpipes was inspired when he saw a
man carrying an indignant, asthmatic pig under his arm. Unfortunately,
the manmade sound never equaled the purity of the sound achieved by the
pig." - Alfred Hitchcock
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| User: "John Popelish" |
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| Title: Re: Bagpipe startup |
08 Sep 2005 11:34:34 AM |
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Fran Lorin wrote:
can someone explain the phenomenon when a bagpipe player must smack the
bag to "start up" the sound?
I think this is just to get all pipes resonating in a very short time,
so you don't get an annoying sequence of notes as the cord comes up.
The higher Q pipes take a bit longer to get a sound going if the air
flow increases very slowly at the start. The lower Q pipes don't get
started at all till some threshold low is established, and then come
on suddenly. Both these effects are masked in the air flow starts
with a pulse.
also, is this phenomenon the same as when using eye wash squirt bottles
that can either drip or give full stream, especially when the liquied is
suddenly expelled?
I don't think so. This deals with surface tension, and the air in a
bag pipe doesn't have this property.
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