Quote Originally Posted by WeedCollegeGrad
Thanks for the response turtle. I fully believe Zandor's paper...but still being a hard head I just wonder where he gets the numbers. He writes that paint reflects 86% of available light, and mylar reflects 96%...is this a universal constant?
The 96% reflectivity is, I would guess, written all over in Mylar's adverisement... let me check...

Yeap... from www.BGHydro.com, """Mirror-like mylar is one of the best and most affordable reflective materials made, with over 98% reflectivity."""

As to the 86% figure, I don't think he looked it up in a Materials Handbook... but, I think it's a pretty good estimate. I mean, I would be impressed if a painted surface (white) reflects over 90% of light... I think that even 86% is a high figure... So I guess he just threw in a ballpark figure for the math...

Either way, it gets the point across.


Quote Originally Posted by WeedCollegeGrad
and smells pretty.
Careful... that's what weed is for...
turtle420 Reviewed by turtle420 on . theory of magnifying light...??? One day i was sitting outside smoking a bowl with a magnifying glass and something came to me. Light is released in a concentrated, brighter beam when it is passed through the glass. I wondered if a custom made glass window with the right curvature, not as convexed as the magnifying glass, could increase the power of a light bulb. This means you can concentrate light directly on your plant. It would recieve almost all the lumens that the light emits. Basically light isnt lost; the plant Rating: 5