Artificial Reflective Duckweed for Swimming Pools

This would certainly be the cheapest way to get the pool temperature down a few degrees.
The "duckweed" must be something like cheap mylar plastic disks that
spread out by themselves with very little clumping. Maybe surface or magnetic effects + slight wave action will work.
http://en.wikipedia.org/wiki/Lemnaoideae
The disks must either float just below the surface or wick water through for evaporative cooling. The disks should be large enough to not pass through the filtration / chemical system.
The disks also need to be non toxic.
Bret Cahill
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No one anywhere is worried about cooling down their swimming pool.
The problem is heating them up and keeping them warm.
<snip idiocy>
--
Jim Pennino

Remove .spam.sux to reply.
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Bret Cahill wrote: [snip all]
Why is this dumb shit being posted to sci.physics? Piss off.
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