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Re: [IPk] air bubbles question

Diana Maynard wrote:
> I was playing with the tubing just now and wondering about air bubbles.
> if I hold a section of tubing (say about 5 inches long), and I rotate
> one end between my finger and thumb, whilst keeping the other end
> still (pr even when moving the other end at the same time), I can see things 
> moving up and down the tube. WHat I can't work
> out is if this is just the light or if it's tiny sections of air. The
> pump is working fine and doesn't appear to have any air in, but who
> knows?

I can never see air. It's transparent...

Pass on the bubbles. Put it in front of your online camera and we'll all
take a look.

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