From: dmhills{at}attglobal.net (Don Hills)

In article , "Tony Ingenoso"
 wrote:
>What force is going to "frang" a 10 micron particle?

Impact with another particle. Put it on the ground with other dust and walk
on it a few times, most of the resulting particles will be below 1 micron
in size. And it doesn't stop there.

>The point is that transport across cell walls occurs on a molecular level,
>NOT at a boulder level.

Your point is pointless. It doesn't have to transport across cell walls. It
just has to get inside you in contact with your soft tissues - lung and
gut. Getting into the bloodstream is a bonus, and can happen easily in the
gut with very small particles.

--
Don Hills    (dmhills at attglobaldotnet)     Wellington, New Zealand
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