It is not likely a bouncing a mass at the spring.

Unless the coast line is properly "terminated" :)
there would be big loos of energy once wave is
hitting it. Reflection will be miserably low.


> I disagree with this also.  My main argument is that much of the energy is
> not dissipated, but returns to the system.  It's sortof like bouncing a mass
> at the end of a spring.  Once you get it going, it take relatively little
> power to sustain a large oscillation.  That's because little is being
> dissipated.  The energy just gets sloshed around between the spring and the
> mass.  Only the little bit lost to friction and air resistance must be
> replaced by the driving mechanism each cycle.
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