h a l f b a k e r y
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All controlled with a sonar unit.
For an extra dollar you also get a sonar-to-audio unit, so
that you can hear the real fish response to your signal.
[edited: this product is fish friendly. See annotations]
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||+ can you teach the fish to activate it?
||Its probably similar to understanding birds. Can you
talk to birds? Konrad Lorentz did. (One Jackdaw even
recognized him after years, in the city, descended
from its group and called him to join them)
||Hugh Lofting documented Dr. Dolittle saying that it
takes a lot of patience,
but in the end you can understand almost any animal.
||I don't think fish would appreciate this. They're quite sensitive to pressure waves, hence why you shouldn't tap on the glass.
||The fish would appreciate this by dying.
||Some research would be needed (a good project for a
post doc in marine bio) so that it would be fish
friendly. The signal does not have to be that
powerful, and can be at levels that the fish produce