I need to get this off my chest

T.H.Cammo said:

I would say it's more like impossibly complicated. If your premis is even correct (I've never heard of this before - how would you even begin to calculate the amount your light source is spreading out?).
If you're saying what I think you're saying - you would need an almost infinite amount of measurements and calculations. Ain't nobody gonna do that!
On the other hand, I would be glad to be steered in the right direction. How does this "Many Points of Light" Inverse Square Law work? How can I use it? I've always wanted to know how to calculate my Light Hood in conjunction with The Inverse Square Law. How can I do this?

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Okay. okay - I take it all back! I did a little extra digging and this link - http://www.pmodwrc.ch/newrad2005/pdfabstracts/Newrad044.pdf - is what I came up with. Appearantly the scientific community does indeed recocognize a "Modified" version of The Inverse Square Law (as it applies to light radiation). I have to admit that the math involved is way over my pay grade - so I couldn't use this formula, even if I wanted to. But still - it is possible.

If I offended anybody, or caused any hard feelings, I apologize. However - I do wish there was a "reasonably easy" way to calculate your light loss in a real world grow situation!

guardiangk said:

Stupid is as stupid does.

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Thanks Forrest!

I really have to get this off my chest...I've been useing 3.5" steel spikes in my grow for years...Before I cut the cubes from slab I stick a spike in the center of the top of the cube then I toss it into the spent res water. When I take the cubes out of the spent res water to use them I can tell which side is up because its got a spike sticking out of it. The spike/nail acts as a handy little weight helping to sink the hard dry rockwool cubes. It also(the nail) makes a neat little hole in the cube to stick the freshly cut shoot in

I've taken to useing soft rockwool and I've taken to planting into the side of this soft rockwool instead of into the top as is done with hard rockwool. The problem remains...what do I use to make the hole for the snip/clone?

I can understand the confusions.