Unclebaldrick
Well-Known Member
16 pillow cases? One for each ounce? At least for the first day. After that they probably kinda just turn to dust.Please do and STFU.
16 pillow cases? One for each ounce? At least for the first day. After that they probably kinda just turn to dust.Please do and STFU.
I am very well aware of that. After a cursory look at the equation I saw some nonsensical ramblings of terms.Remember this disagreement is regarding your claim that the entry for specific brightness is technically wrong.
He claims to do grow light research and he doesn't understand intensity vs brightness.
He's trying to argue this shit reading from a textbook and doesn't seem to understand the actual meat.
Nope, its got to be acknowledged at the physics web site.I am very well aware of that. After a cursory look at the equation I saw some nonsensical ramblings of terms.
I still have no doubt the formula for Bv is incorrect. Now I see there are a multitude of problems with that glossary listing.
To explain the problems in detail it will be a fair amount of work to find the citations to substantiate my claim.
You refer to this as a bet yet I do not see any benefit to me when I win the bet (not if I win, but when) that would motivate me to do the necessary work .
How about when I win we start a new thread tilted 2017 LED Lighting Dunce Award Goes to [loser of bet]
Where within the text is my explanation why the Bv formula and description of the Brightness listing is wrong.
The loser then admits they were the "rightful winner of the 2017 Dunce Award"
My other concern is there appears to be no updates on this suspect site since 2007. We need an additional method of verifying my submitted corrections.
I am right and you are wrong. I am NOT trying to weasel out. It's not going to be difficult, it's going to waste my time.Either you are right or you are wrong and here is your opportunity to shove it back on me. You are trying to weasel out by talking about "how hard it's going to be". Fuck that.
Yeah they are equally as fucked up. Brightness can be equated to Luminance but not radiometric radiance. Radiance is quantitative and brightness is perceived as is Luminance. Good night.If you'd rather pick an argument with a different site, here is one:
Growlightretard.@GrowLightResearch
If you'd rather pick an argument with a different site, here is one:
https://www.rp-photonics.com/brightness.html
The term brightness is often used in the context of lasers and laser beams, but often with a purely descriptive, non-quantitative meaning. It is also used with various quantitative meanings; this variety is frequently the origin of confusion. In particular, brightness is sometimes meant as the photometric quantity luminance, but at other times the radiometric quantity radiance (see below). The important difference is that radiometry deals with optical powers and related quantities, whereas photometry estimates the intensity of optical radiation as perceived by the eyes.
Although e.g. the U.S. Federal Standard 1037C recommends the use of the term brightness only for non-quantitative references in the context of physiological sensations, other uses of the term have become common. In the context of laser technology, the brightness of a laser source (in a quantitative sense) is generally understood as being equivalent to its radiance, which is the total power divided by the product of the mode area in the focus and the solid angle in the far-field; the units are then usually W sr−1 cm−2. The rest of this article assumes this meaning, following the usual practice in this field of technology.
It seems you are hung up on a US standard that other people don't use. What a didactic moron you are.
Plants don't care what a US standard is, neither do I or in laser technology, it seems.
You'll never get as good a crop as you will with LEDs.I also use the completely free and environmentally friendly sun
Now we're getting to the meat of it.@GrowLightResearch
If you'd rather pick an argument with a different site, here is one:
https://www.rp-photonics.com/brightness.html
The term brightness is often used in the context of lasers and laser beams, but often with a purely descriptive, non-quantitative meaning. It is also used with various quantitative meanings; this variety is frequently the origin of confusion. In particular, brightness is sometimes meant as the photometric quantity luminance, but at other times the radiometric quantity radiance (see below). The important difference is that radiometry deals with optical powers and related quantities, whereas photometry estimates the intensity of optical radiation as perceived by the eyes.
Although e.g. the U.S. Federal Standard 1037C recommends the use of the term brightness only for non-quantitative references in the context of physiological sensations, other uses of the term have become common. In the context of laser technology, the brightness of a laser source (in a quantitative sense) is generally understood as being equivalent to its radiance, which is the total power divided by the product of the mode area in the focus and the solid angle in the far-field; the units are then usually W sr−1 cm−2. The rest of this article assumes this meaning, following the usual practice in this field of technology.
It seems you are hung up on a US standard that other people don't use. What a didactic moron you are.
Plants don't care what a US standard is, neither do I or in laser technology, it seems.
That's a good thingYou'll never get as good a crop as you will with LEDs.
Brightness is not an optical measurement.
nonsense
Your anecdotal shit means just that, shit. Got science?
yes. There is science and anybody with normal intelligence can understand it. Not you but anybody with normal intelligence.
Look it up. Specific brightness is a physical quantity and completely measurable.
As shown in previous posts, I did just that. I posted links that showed brightness is in fact a measurable quantity within technical communities. What @GrowLightResearch is doing is using a federal standard as if it were some physical reality. As if an agreement by one technical community can change the meaning of a word.Bullshit. Show me.
Let me be a little clearer. Citations from a reliable source.
Reliable sources may be published materials with a reliable publication process, authors who are regarded as authoritative in relation to the subject, or both. These qualifications should be demonstrable to other people.
No, assbite, a federal standard based upon the human perception of brightness doesn't alter reality. Lumens are for humans, not plants, dickweed. Brightness is defined differently in different applications, as I've repeatedly shown you.Yeah they are equally as fucked up. Brightness can be equated to Luminance but not radiometric radiance. Radiance is quantitative and brightness is perceived as is Luminance. Good night.
At least the new site got spectral brightness correct where the physics site mistakenly used the term specific brightness. Specific intensity is related. You'll see.
This is like trying to explain watts, amps and volts to someone who claims to be an Electrical Engineer...bright·ness
ˈbrītnəs/
noun
- the quality or state of giving out or reflecting light.
"we can change the brightness of the bulb- the quality of being intelligent and quick-witted.
"he reminded me of my first son with his brightness and inquisitiveness"
Brightness is a generally used word and generally defined as above. Of course, neither definition would apply to @GrowLightResearch
One citation would be US Federal Glossary of TelecommunicationsI am very well aware of that. After a cursory look at the equation I saw some nonsensical ramblings of terms.
I still have no doubt the formula for Bv is incorrect. Now I see there are a multitude of problems with that glossary listing.
To explain the problems in detail it will be a fair amount of work to find the citations to substantiate my claim.
You refer to this as a bet yet I do not see any benefit to me when I win the bet (not if I win, but when) that would motivate me to do the necessary work .
How about when I win we start a new thread tilted 2017 LED Lighting Dunce Award Goes to [loser of bet]
Where within the text is my explanation why the Bv formula and description of the Brightness listing is wrong.
The loser then admits they were the "rightful winner of the 2017 Dunce Award"
My other concern is there appears to be no updates on this suspect site since 2007. We need an additional method of verifying my submitted corrections.
I am wiling to make it a cash bet for any amount you or anyone are willing to put up. I will match with twice the amount or 2 to 1 odds. Minimum amount $500. I know a Harvard Law School trained attorney in Florida that could setup an agreement and escrow account.
Watts = volts x amps [current]This is like trying to explain watts, amps and volts to someone who claims to be an Electrical Engineer...
You found someone, and only one, that defined a term named "specific brightness". The term "specific brightness" is not found anywhere else. In the same definition it says "specific brightness", intensity, radiance, and surface brightness are all the same.As shown in previous posts, I did just that. I posted links that showed brightness is in fact a measurable quantity within technical communities
Nope, "specific brightness" was a typo. It does not exist except on that one single solitary site. Except for the people that want to set their video monitor to a specific brightness.Specific brightness is a physical quantity and completely measurable.
Your "citation" throws SneekyNinja under the bus. He says it's intensity and NOT brightness. Your citation says intensity and brightness are the same thing. Whereas reliable sources say brightness was (as in past tense) synonymous with Luminance (an SI derived quantity) rather than Luminous Intensity (an SI base quantity) or Radiant Intensity (an SI derived quantity ) not being defined as being the same.It's an issue of intensity, not of brightness.
A bulb and the sun can have the same brightness, do they have the same intensity?
Brightness? It's not an SI unit of measure. It's a perception. It's ambiguous.
@dabby duck, you missed part of it.One citation would be US Federal Glossary of Telecommunications