Why are carbonated bubbles on a straw larger at the bottom?

Subject: Why are carbonated bubbles on a straw larger at the bottom?

Date: Thu Jun 29 18:38:41 2000
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Area of science: Physics
ID: 962318321.Ph

Message:

I have noticed that when drinking a carbonated drink through a plastic straw, the bubbles that collect at the bottom of the straw are larger than those that collect at the top. I would have expected the opposite, as the pressure at the bottom will be greater. Why does this happen?

Re: Why are carbonated bubbles on a straw larger at the bottom?

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