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To: null and void

I wonder how an electromagnetic field is propagated in salt water. Radar waves are quickly attenuated, that is why we use SONAR.


16 posted on 03/05/2006 10:33:39 AM PST by Citizen Tom Paine (An old sailor sends)
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To: Citizen Tom Paine

If you watch the vids at the website, the sharks get pretty close before getting zapped. The field only needs to propagate a few feet.


18 posted on 03/05/2006 10:39:13 AM PST by Psycho_Bunny
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