Pat Flannery wrote:
All joking aside, if the waters of Europa really are quite salty and
full of minerals as has been speculated, that could make them
electrically conductive enough for creatures living in them to use
sensory organs based on some form of electrical conduction to detect
things in their environment, as well as sound detection (which would
work very well indeed, as there would be no wave noise to contend
with).

I seem to recall that one of the reasons it was/is popular for
submarines to hide under the Arctic ice was it was very noisy. Given
the cracks and tidal forces on Europa couldn't it be pretty noise too?

rick jones
--
The glass is neither half-empty nor half-full. The glass has a leak.
The real question is "Can it be patched?"
these opinions are mine, all mine; HP might not want them anyway...
feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH...