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Re: Demystifying Lighting
>IMHO you guys are making this difficult for non-scientific folks reading
>this list to understand. In typical aquariums with sufficient lighting
>to grow plants, the 1/r**2 approximation for light intensity does NOT give
>a good approximation of how the light varies in relation to the distance
>from the source.
Instead of trying to figure out theoretically how much light reaches our
plants, with all the complications that entails, why not just get a light
meter. Wrap it in plastic and hold it where your plants are.
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Greg. Tong
gtong at sirius_com (delivered by Cyberdog)
San Francisco, CA, USA
"Every infinity is composed of only two halves."