--- Adrian Bowyer <[log in to unmask]> wrote:
> The eye is not one entity - there are many eyes,
> from our sort right through to
> compound insect eyes. Eyes are also far from
> perfect. For example, in mammals
> the nerves carrying the signals from the light
> sensors to the brain run over the
> _front_ of those sensors in the way of the light -
> no engineer would design it
> that way. In cephalopods (octopuses etc), by
> contrast, the nerves run from the
> back of the sensors; in other ways their eyes are
> remarkably similar to ours.
>
> The reasons for these differences is that eyes have
> evolved independently about
> forty times. And the far-from-perfect nature of
> them is evidence of this:
> evolution can get stuck in local optima.
>
> Yours
>
> Adrian
>
> http://staff.bath.ac.uk/ensab
> http://reprap.org
>
thanks adrian, very interesting bit of information.
my line of inquiry is adressing this result:
http://arxiv.org/ftp/physics/papers/0506/0506041.pdf
the graphic in page 10.
it shows how shockwaves evolve as the velocity field
of the bubble propagates in time.
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