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Re: Weird light

>Date: Tue, 16 Feb 1999 17:53:16 -0700
>From: George Booth <booth at frii_com>
>Subject: Re: Weird light
>I was browsing rec.aquaia.freshwater.plants recently and came across this:
>>mkaczur at earthlink_net wrote:
>>> I started reflecting sun with a mirror to my plant aquarium.   Will
>>> reflecting the sun with a mirror be benificial to the plants???    My
>>> aquarium is a 30 gallon tall with two 20 watt tubes.     Michael
>>No, reflecting sunlight from a mirror changes the polarity of the light.
>>The reversed polarity may kill the plants.
>Holy cow, I never thought of this. Is it possible? 

Sure, it's a well known fact.  Also, when using fluorescents, make sure the
printed bulb label is facing down, for the same reason.  Needless to say,
do not use any bulb with no stamped label, the polarities are all screwed
up on those.


P.S.  ;-)