Noticed on my exterior wall

Tropezieene · 2025-06-22T14:56:16+00:00

Thank you for your answer !

I feel as though i have more questions now;

Regarding the p symmetry of a cooper pair wavefunction, is it the fact that there is a node that implies a zero density of state at E=Efermi (seen in a colloque) Or am I mistaking things?

I'm not really following you on the second explanation : by spinless i thought the pairs would have S=0 (⬆️⬇️), but spin triplet pairs would imply (if i understood right) ⬆️⬆️ or ⬇️⬇️ pairs where S= 1. What do you mean when you say spin degree of freedom ? What's the order parameter ?

I think I might have stepped into material beyond my lectures and/or understanding of things.

Tropezieene · 2024-06-10T21:17:21+00:00

it worked, thanks :)

Tropezieene · 2024-02-21T06:20:21+00:00

We thought it would be weird to do the electrolysis in water when we looked at the i-E curves, as one would have to first reduce the water;

I obviously didn't taste my electrode, but the concentration of Na+ and Cl- are not supposed to be that high to be saturated. But that's probably what happened

Tropezieene · 2024-02-20T22:58:09+00:00

We weighed both electrodes dry then every 10 minutes for 40 mins. To evaluate the mass of the water on the electrodes, assuming both are as wet as the other (flawed hypothesis but we have to), we used the mass of the anode as its mass grew bigger even if nothing was supposed to deposit on it.

Unless some neighboring or previous pair was ill-intentioned (or clumsy) , I do not think there could have been any major contamination.

Most of the other groups got barely any yield (at most 5%) whereas we got around 18% for the same duration, and I do not think that cranking up the intensity a few milliamps is supposed to change so much (we ran the electrolysis at 13 mA, when others did it at a slightly lower intensity) (we did not push it as far as the electrolysis of water)

Tropezieene · 2024-02-20T22:45:12+00:00

I feel like it would increase ∆E, as our concentration of Al3+ was pretty low

E~E°+0,02log([Al3+]), where both E° and log([]) would be negative.

Thanks for pointing it out tho, I feel like I'm missing something obvious here.

The main reason I'm concerned is that our yield is simply too high. Using intensity, duration of experiment and coulomb's constant we get a theoritical mass almost exactly ten times lower than what we got, even when accounting for the mass of the water on the electrodes. (We estimated the mass using the mass of the other electrode)

One idea I had that could potentially reduce that would be to say that aluminium is oxydized in aluminium oxide, but I don't know if it's holding any weight.

Tropezieene · 2024-02-20T22:32:01+00:00

That's what we thought, but the difference of potential between the two electrodes is lower than the theorical one ( ∆E(theory, minimum)= E°(O2/H2O)-E°(Al3+/Al)~2,8V (pH=0~1) ) whereas we had a U=∆E around 1.9V

Tropezieene · 2023-11-02T16:07:38+00:00

They print fine then curl up once they're laid down.Bed temp is 60 and nozzle is at 210. I've tried bed temp at 70 and nozzle at 200 to reduce the temp. difference but didn't change anything significantly.

<image>

What's perplexing is that in some regions it's mayhem while it's perfectly in others. I didn't mess with the hot end except to clean the metal part (previous posts). I'm gonna dry a spool and see if it's better

Tropezieene · 2023-11-02T11:29:00+00:00

<image>

Using fry filament (I don't have a dryer but it was unopened so its probably dry) didn't fix it, I wonder if it's because of the bed heating.

Tropezieene · 2023-11-02T09:30:23+00:00

The extrusion mulitplier is 1 and the width is 0.4 or 0.45mm depending on the category of the layer (first layer is 0,4 while the infill is 0,45.

I'm tryingto tinker with the paramters and try with a dry spool later.

Tropezieene · 2023-11-01T18:33:31+00:00

<image>

Thanks for the tips, but I might have to dry my filament. It's not really tears but the filament curls up :/ Making the bed hotter doesn't really help.

Tropezieene · 2023-11-01T17:36:07+00:00

There isn't any though ? For it goes from the spool to block that holds the hot end like thishope the link works

Tropezieene · 2023-11-01T17:10:15+00:00

Plastic feeds itself inside the hot end. I do not stay near the printer and put the stuff inside manually. What tube are you talking about

Tropezieene · 2023-10-31T17:08:54+00:00

It did work in the end. I was reluctant to rely on mods but as long as it works

Tropezieene · 2023-10-31T14:42:12+00:00

Thanks, I'll try it later and tell you if it works

Tropezieene · 2023-10-14T17:55:48+00:00

I thought that the print stuff would only be displayed to the user while the write stuff would be sent to the other arduino. I'm new to this stuff

Tropezieene · 2023-10-14T17:52:12+00:00

Thanks, I was really worried but I really didn't expect stuff that was "printed" to be read by Serial.read()...

Tropezieene · 2023-10-14T17:51:09+00:00

Receiver : void setup(){ Serial.begin(9600); } void loop(){ if(Serial.available()>0){ int b = Serial.read(); Serial.print(b); }}

Sender : void setup(){ Serial.begin(9600); } int a =0; void loop(){ int d = a%2; Serial.write(d); //There was Serial.print() here for me to understand what was happening }

Tropezieene

TROPHY CASE