On my other machine I have a copy of the proof of why the bubbles go
down. I believe someone from an Australian university got his Masters
in Mechanical Engineering / Fluid Dynamics based on the research.
That rocket widget is the wedge shaped thing I was talking about.
Andrei
timnagin wrote:
>A trivia thing I heard was that Guinness was the only beer where the bubbles
>would fall instead of rising. I think they said it was due to nitrogen gas
>being heavier than air, or CO2. My understanding is that there is no CO2 in
>Guinness at all.
>
>I found the following bit of info on their site, which could explain what
>Andrei saw. I have never seen the "wedge" either.
>
>"In 1999 GUINNESS® introduced the "rocket widget" so drinkers could enjoy
>GUINNESS® Draught anythime, anywhere, straight from a bottle."
>
>Greg
>
>PS - The typo in the above paste is from their site. Apparently someone had
>a wee bit too much :)
>
>
>
>-----Original Message-----
>From: Andrei Cular [mailto:acular@xxxxxxxxxxxxxxx]
>Sent: Friday, November 12, 2004 10:48 PM
>To: DMCForum@xxxxxxxxxxxxxxx
>Subject: Re: [DMCForum] Actually on topic - well maybe not
>
>
>
>It has to be at least 5 years ago or more now that I saw the wedge in
>the can. And after carefully studying it we figured they had a gas
>charge that would cause it to rotate, which would simulate the
>non-laminar flow out of a tap in turn creating the head. But we never
>had the time to test the theory. Now if you poor you self a glass, and
>let it sit for a few seconds before consuming it, watch the bubbles
>very carefully and you will see some of then going down instead of up.
>Now somewhere I do have a proof of why the bubbles go down.
>
>Andrei
>
>mike clemens wrote:
>
>
>
>>Andrei,
>>
>>When did they put a wedge in the can?? I hadn't heard
>>about that.
>>
>>Mike
>>
>>
>
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>
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>
>Yahoo! Groups Links
>
>
>
>
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