Easy!
Micro shells can be any size when
If you are short-sighted the shell touches your eye-brown before you can see
it;
If you are far-sighted your arm is not long enough to see it!
Marcus
Marcus Coltro
WWW.FEMORALE.COM
---- "Monfils wrote:
> Which raises a question - just what size is the upper limit for a "micro
> shell"? I hear various opinions - 3 mm, 5 mm, 6 mm, 10 mm - I realize
> there is no objective hard and fast rule, but what are people's opinions
on
> this, and why?
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