The UK Growers Thread!

Hettyman

Hettyman

Well-Known Member
The Yorkshireman said:
It's a little late for me to get really techy about it but in short, because it's made of metal. It absorbs more light than what it appears to reflect and it also causes massive hot spots.
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Good enough. I have some mylar sheetng on order. I'll use the off-cuts and swap the foil out
 
ae86 grower

ae86 grower

Well-Known Member
The Yorkshireman said:
It's a little late for me to get really techy about it but in short, because it's made of metal. It absorbs more light than what it appears to reflect and it also causes massive hot spots.
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i`d agree with that statement as a rule of thumb to growing, best get a can of flat white and slap it on if you can`t afford fancy mylar and stuff...
 
The Yorkshireman

The Yorkshireman

Well-Known Member
I had this same discussion just the other day on a rival site, we were comparing a dimpled surface vs a flat surface.
I'll sniper my posts from there for some brain food.
 
The Yorkshireman

The Yorkshireman

Well-Known Member
You should never ever use foil (as in Aluminium foil that you use for the Sunday Chicken) to line your grow room, foil may look reflective but because it's made from metal it will actually absorb more light than it reflects. Mylar sheeting on the other hand is not made from metal.

Light being reflected up, down and all over is called light "diffusion".
A Perfect (Reflecting) Diffuser (PRD) is a theoretical perfectly white surface with Lambertian reflectance (its brightness appears the same from any angle of view). It does not absorb light, giving back 100% of the light it receives.

So the best thing to for your grow room walls is actually,

1) Matt white paint, NOT gloss.
2) White plastic sheeting.
3) Perfectly flat Mylar.
4) Diamond Dimpled Mylar.

Mylar is only ever beneficial over paint/plastic if it can be hung PERFECTLY FLAT and I challenge anybody to stick Mylar up flat, the ONLY way it can be done is with spray glue to bare plasterboard even then it's practically impossible!


 
The Yorkshireman

The Yorkshireman

Well-Known Member
The Laws Of Reflection

If the reflecting surface is very smooth, the reflection of light that occurs is called specular or regular reflection. The laws of reflection are as follows:

1) The incident ray, the reflected ray and the normal to the reflection surface at the point of the incidence lie in the same plane.
2) The angle which the incident ray makes with the normal is equal to the angle which the reflected ray makes to the same normal.
3) The reflected ray and the incident ray are on the opposite sides of the normal.

This is not the case with dimpled surfaces as the light becomes diffused not reflected.
 
DST

DST

Well-Known Member
Not quite I would say, another week maybe. The stigmas should have receeded and the calyxes will start swelling. You could take it now, I just think it will add on some if you leave it go.....


Morning UK-ers, hope you all had a stoney day yesterday.

Peace, DST
 
dura72

dura72

Well-Known Member
morning troglodytes....another comm service shift looms on the horizon but its ok coz a hot chick started with us last week, bloody nice change from the wheely bin dwellers we usually have.
 
DST

DST

Well-Known Member
hehe, not at all lad, it was actually at newuser. but same applies to you in retrospect then since ya felt it in yer heart, lol......
 
tip top toker

tip top toker

Well-Known Member
herbal crow said:
hello im new to growin but giving my best im growing power kush in my grow tent and growing blueberry in my greenhouse for the first time im usin coco pro plus in all plants is there anything i should be watching out for the power kush is doing supreme but the blueberry that are growin in green house are very tall with big gaps between stems is that normal for blueberry as it i am just after some advice please will add pics at some point i have grown with liimited success before in tent but im confused about the growing outside
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Right then HC, good morning :)

With regard to the spacing between the nodes. This is due to 2 possible things. Firstly, the node spacing is very much strain and phenotype dependent. Typically you want to find a phenotye with very tight node spacing, it generally means that there will be more budsites and as such more bud :) The second reason for larger gaps between the nodes is stretching, this is when the plant is not getting enough light and it stretches upwards in search of it. If you are in the UK and in a greenhouse well, the sunshine has not been what you would call fantastic of late, mostly grey and sunny spells here and there, so the chances are that it has been stretching due to this. Might be an idea to grow it under artificial light until the weather really picks up and we get rid of these bloody april rain clouds :)
 
tip top toker

tip top toker

Well-Known Member
Morning mdb.I for some reason feel fucking fantastic today :) Well no, it does feel like i have a razor blade stuck under my right eyelid, 1 minute it's fine, the next minute i can't open it. Other than that though, woooo, weekend.
 
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