Thread: Now I know what the spiral is for
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Harry Bloomfield[_3_] Harry Bloomfield[_3_] is offline
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Default Now I know what the spiral is for
The spiral on metal chimneys that is. I used to think it was about
having the wind help draw gases out of the chimney. In fact it about
preventing wind eddies shaking the chimney to destruction.

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Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk
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