Rimantas Zujus wrote:
>
> If there is no moving/mixing  force (wind, bee fennig with wings, maybe,
> thermic streams, etc) these gases distribute according to their specific
> weight.
>

Actually, they don't.  All gases are infinitely soluble in each other,
and they diffuse much faster than any sort of "settling out" effect.
Because of this, mixtures of gases do not spontaneously unmix, no
matter how still the air is kept, what the composition of the gas mixture
is, or how long you keep it still.

While it is true that pure CO2 is denser than air, we aren't talking
about pure CO2 here.  The air that the bees breathe out will have a
few percent CO2, at most, which won't be enough to make the air
noticeably denser.

Tim Eisele
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