Quantum Boards Grow

V

VegasWinner

Well-Known Member
nfhiggs said:
You're stoned dude. I HAVE googled it, its how I learned about it. There is no such description of it even remotely similar to what you described. There has never been a "change". It does the same thing today that it did when Thomas Young first did it in the early 1800's. The only thing that's different is that electron guns have been used to demonstrate that wave/particle duality applies to electrons as well as light. Electrons behave like particles in the experiment if a detector is placed to determine which slit they pass through, and they behave like a wave if there is no detection mechanism. It has nothing to do with the expectations of the experimenter, and everything to do with the electron interacting with the detector and breaking down the quantum wave function.
Click to expand...
This is a PBS article, perhaps you do not have public television either. Either way you should stop smoking so much and start reading more. You have revealed both your ignorance and arrogance.
This is the part I love. ->http://www.popularmechanics.com/science/a22280/double-slit-experiment-even-weirder/

Do you remember the double-slit experiment? It's one of the weirder experiments in modern physics, and cuts to the heart of the weirdness of quantum mechanics. Basically, waves that pass through two narrow, parallel slits will form an interference pattern on a screen. This is true for all waves, whether they're light waves, water waves, or sound waves.

But light isn't just a wave, it's also a particle called a photon. So what happens if you shoot a single photon at the double slits? Turns out, even though there's only one photon, it still forms an interference pattern. It's as if the photon travels through both slits simultaneously. You can read more about the double slit experiment here.

But wait, because it gets even weirder. As a new episode of PBS's Space Time shows, just by observing the double-slit experiment, the behavior of the photons changes.
The idea behind the double-slit experiment is that even if the photons are sent through the slits one at a time, there's still a wave present to produce the interference pattern. The wave is a wave of probability, because the experiment is set up so that the scientists don't know which of the two slits any individual photon will pass through.

But if they try to find out by setting up detectors in front of each slit to determine which slit the photon really goes through, the interference pattern doesn't show up at all. This is true even if they try setting up the detectors behind the slits. No matter what the scientists do, if they try anything to observe the photons, the interference pattern fails to emerge.

It gets even weirder than that.

A group of scientists tried a variation on the double slit experiment, called the delayed choice experiment. The scientists placed a special crystal at each slit. The crystal splits any incoming photons into a pair of identical photons. One photon from this pair should go on to create the standard interference pattern, while the other travels to a detector. Perhaps with this setup, physicists might successfully find a way to observe the logic-defying behavior of photons.

But it still doesn't work. And here's the really weird part: It doesn't work regardless of when that detection happens. Even if the second photon is detected after the first photon hits the screen, it still ruins the interference pattern. This means that observing a photon can change events that have already happened.

Scientists are still unsure how exactly this whole thing works. It's one of the greatest mysteries of quantum mechanics. Perhaps someday someone will finally be able to solve it.

and now back to your regularly scheduled programming.
Sorry about the interruption, but I hate to let untruths linger
I actually studied engineering not google.
namaste
 
nfhiggs

nfhiggs

Well-Known Member
VegasWinner said:
This is a PBS article, perhaps you do not have public television either. Either way you should stop smoking so much and start reading more. You have revealed both your ignorance and arrogance.
This is the part I love. ->http://www.popularmechanics.com/science/a22280/double-slit-experiment-even-weirder/

Do you remember the double-slit experiment? It's one of the weirder experiments in modern physics, and cuts to the heart of the weirdness of quantum mechanics. Basically, waves that pass through two narrow, parallel slits will form an interference pattern on a screen. This is true for all waves, whether they're light waves, water waves, or sound waves.

But light isn't just a wave, it's also a particle called a photon. So what happens if you shoot a single photon at the double slits? Turns out, even though there's only one photon, it still forms an interference pattern. It's as if the photon travels through both slits simultaneously. You can read more about the double slit experiment here.

But wait, because it gets even weirder. As a new episode of PBS's Space Time shows, just by observing the double-slit experiment, the behavior of the photons changes.
The idea behind the double-slit experiment is that even if the photons are sent through the slits one at a time, there's still a wave present to produce the interference pattern. The wave is a wave of probability, because the experiment is set up so that the scientists don't know which of the two slits any individual photon will pass through.

But if they try to find out by setting up detectors in front of each slit to determine which slit the photon really goes through, the interference pattern doesn't show up at all. This is true even if they try setting up the detectors behind the slits. No matter what the scientists do, if they try anything to observe the photons, the interference pattern fails to emerge.

It gets even weirder than that.

A group of scientists tried a variation on the double slit experiment, called the delayed choice experiment. The scientists placed a special crystal at each slit. The crystal splits any incoming photons into a pair of identical photons. One photon from this pair should go on to create the standard interference pattern, while the other travels to a detector. Perhaps with this setup, physicists might successfully find a way to observe the logic-defying behavior of photons.

But it still doesn't work. And here's the really weird part: It doesn't work regardless of when that detection happens. Even if the second photon is detected after the first photon hits the screen, it still ruins the interference pattern. This means that observing a photon can change events that have already happened.

Scientists are still unsure how exactly this whole thing works. It's one of the greatest mysteries of quantum mechanics. Perhaps someday someone will finally be able to solve it.

and now back to your regularly scheduled programming.
Sorry about the interruption, but I hate to let untruths linger
I actually studied engineering not google.
namaste
Click to expand...
Yes, LOL, and the article pretty much describes what I did in my reply, and that is NOT what you initially characterized it as (did you even read it?). Need I quote?

"The double slit experiment uses a point source of light. For years the outcome was predictable, a portion of the light was distributed equally at an expected angle for both slits. However, one day, it was observed the point source became a wave of light behaving like a wave and not a point source, as in past experiments. The scientific community began researching the two outcomes and came to realize the observer through their observation was effecting the outcome to bend towards what the observer believed."

The results never "changed" mysteriously and it has nothing to do with "beliefs" of the experimenters (and no credible science writer has ever claimed such). The "point source" never became a "wave behaving like a wave and not a point source". Light ALWAYS behaves "like a wave" creating an interference pattern in the *original* experiment. Only when the EXPERIMENT was changed with the addition of detectors at the slits - EXACTLY as I described in my reply above - does the interference pattern disappear. And despite what the article is saying, in fact there are explanations in quantum theory for the behavior, it has to do with the collapse of the quantum wave function when the particles interact with the detectors. You cannot "observe" a particle without somehow interacting with it. The final bit of weirdness is an example of Quantum Entanglement. And though the article does not mention it, the experiment was more often done using an electron gun, because A, they behave just like photons in the experiment, and B, they are easily detected without stopping them.

"Sorry about the interruption, but I hate to let untruths linger"
Your untruth is no longer lingering, thanks to that article. Thanks for correcting yourself.

Not sure how "studying engineering" gives you any credibility. Last time I checked, Quantum Mechanics was not part of the curriculum.
 
V

VegasWinner

Well-Known Member
nfhiggs said:
Yes, LOL, and the article pretty much describes what I did in my reply, and that is NOT what you initially characterized it as (did you even read it?). Need I quote?

"The double slit experiment uses a point source of light. For years the outcome was predictable, a portion of the light was distributed equally at an expected angle for both slits. However, one day, it was observed the point source became a wave of light behaving like a wave and not a point source, as in past experiments. The scientific community began researching the two outcomes and came to realize the observer through their observation was effecting the outcome to bend towards what the observer believed."

The results never "changed" mysteriously and it has nothing to do with "beliefs" of the experimenters (and no credible science writer has ever claimed such). The "point source" never became a "wave behaving like a wave and not a point source". Light ALWAYS behaves "like a wave" creating an interference pattern in the *original* experiment. Only when the EXPERIMENT was changed with the addition of detectors at the slits - EXACTLY as I described in my reply above - does the interference pattern disappear. And despite what the article is saying, in fact there are explanations in quantum theory for the behavior, it has to do with the collapse of the quantum wave function when the particles interact with the detectors. You cannot "observe" a particle without somehow interacting with it. The final bit of weirdness is an example of Quantum Entanglement. And though the article does not mention it, the experiment was more often done using an electron gun, because A, they behave just like photons in the experiment, and B, they are easily detected without stopping them.

"Sorry about the interruption, but I hate to let untruths linger"
Your untruth is no longer lingering, thanks to that article. Thanks for correcting yourself.

Not sure how "studying engineering" gives you any credibility. Last time I checked, Quantum Mechanics was not part of the curriculum.
Click to expand...
your head is too hard and you are too arrogant. you stated "I WAS WRONG!" You can try all you want I am going to put you on ignorance ignore. You cannot be helped you are too high and too lost to know it asta lavista baby!

Not going to bother to attempt to enlighten you at all any further. don't hurt yourself
 
nfhiggs

nfhiggs

Well-Known Member
VegasWinner said:
your head is too hard and you are too arrogant. you stated "I WAS WRONG!" You can try all you want I am going to put you on ignorance ignore. You cannot be helped you are too high and too lost to know it asta lavista baby!

Not going to bother to attempt to enlighten you at all any further. don't hurt yourself
Click to expand...
LOL. Man, some people just can't accept having their mistakes pointed out.

Don't you worry about me hurting myself bro, I'm not the one grounding myself when working with electricity.

CM - sorry for derailing your thread.
 
Budies 101

Budies 101

Well-Known Member
So, do you feel these lights grow better for tge power used than the 3070's or 3590's? I ask because I'm seeing 250watts on a 4x4 and generally you would run 500watts in a 4x4 of led to make up for 1k HPS.

What are your feeeeeelingz CAPs?
 
captainmorgan

captainmorgan

Well-Known Member
David Abrahamson said:
So, do you feel these lights grow better for tge power used than the 3070's or 3590's? I ask because I'm seeing 250watts on a 4x4 and generally you would run 500watts in a 4x4 of led to make up for 1k HPS.

What are your feeeeeelingz CAPs?
Click to expand...
It depends on how hard your driving them and the type of grow, that's what's great about LEDs, very adaptable. I have 9 QB's driven in series at 1050 ma and it draws 547 watts at the wall. I'm confident that it will cover a 5'x 5', I'll take some umole readings tomorrow after I install the reflector.
 
Budies 101

Budies 101

Well-Known Member
Odd question, are the QB's wired in series or parallel? the Samsung 561c chips, if you know. I dono much about electrical so can you have a multi boards wired together in series but the boar itself be wired in parallel on thei chip to chip level?
 
V

VegasWinner

Well-Known Member
David Abrahamson said:
Odd question, are the QB's wired in series or parallel? the Samsung 561c chips, if you know. I dono much about electrical so can you have a multi boards wired together in series but the boar itself be wired in parallel on thei chip to chip level?
Click to expand...
Chips are generally wired in series. Each row or channel is connected to the next row or channel negative to positive. Each board can be wired in series to each other or parallel depending on your driver amps and led Vf
 
captainmorgan

captainmorgan

Well-Known Member
David Abrahamson said:
Odd question, are the QB's wired in series or parallel? the Samsung 561c chips, if you know. I dono much about electrical so can you have a multi boards wired together in series but the boar itself be wired in parallel on thei chip to chip level?
Click to expand...
Never bothered to ask how the chips are laid out and driven on the board level. The 304 and 288 boards use the same chip but are laid out different and a 288 draws about 54 volts and the 304 around 110 volts.
 
captainmorgan

captainmorgan

Well-Known Member
Got the reflector set up this morning, went pretty quick with my design and mounting it with spring clamps.

The screen is 12" away from the wall covered with panda film and the QB's are 20" away from the screen.

Took readings at the screen and the entire canopy has between 500 to 600 umoles.

I'm thinking I should be close to the sweet spot, especially since any light going through the screen is reflected back off the wall.
 

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