@PM2Ring So then my idea proposal is a good idea then. Since asking questions on the chat in 2 different rooms is an issue. Having 1 room dedicated to answering these questions will solve this problem.
@PM2Ring I was talking about questions asked in the chat rooms. Not on the questions site.
@PM2Ring So I guess we can both agree that having 1 chat room dedicated to answering these types of questions having to do with both Physics and Electrical Engineering would be beneficial. Since the cross-posting is a problem and is discouraged. This chat room would solve that problem.
@PM2Ring We would have two different but yet very similar worlds of interest in 1 place. Creating the best learning opportunity for the members and others asking the questions.
In the simplest implementation of an electrophoretic display, titanium dioxide(titania) particles approximately one micrometer in diameter are dispersed in a hydrocarbon oil. A dark-colored dye is also added to the oil, along with surfactants and charging agents that cause the particles to take on an electric charge. This mixture is placed between two parallel, conductive plates separated by a gap of 10 to 100 micrometres.
@NovaliumCompany So maybe dissolve the NaOH in the surfactant, eg washing-up liquid detergent. You already have TiO2 + NaOH in water at the correct pH, so maybe let most of the water evaporate & add a small amount of detergent.
Probably. It's really hard to find definite details for this stuff. I suppose some of it isn't too hard to reverse engineer, with the right equipment, but people who've done that are hardly likely to spread the info around.
Hey Guys! Question: Is it possible to replicate the exact behavior of the potential of a spherical distribution both within the sphere (as a constant) and outside the sphere (which falls off as 1/r) by rearranging the charge distribution on the boundary? This implies that the source is now at the boundary and solutions to the Laplace equation must yield only the boundary integral.
@PM2Ring After some time, in the current solution that I have of water and charged TiO2 particles, the TiO2 particles seem to sink at the bottom and I can carefully remove the water at the top. Will that work instead of boiling it?
Then I can put some kind of dark paint in the baby oil, then the charged TiO2 particles (with very little water).
@NovaliumCompany You definitely don't want to boil the water off. That would increase the pH too much. So yes, let it settle, then remove most of the water, and then let most of the remaining water evaporate away.
You also need a surfactant. A little bit of detergent added to the TiO2 sludge while it's evaporating will probably work. John Rennie may have better suggestions.
If I prepare photon to be in a definite state with an appropriate device, and then measure some observable (sorry for being vague) of the photon, won't we know the observable deterministically before measuring it?
Maybe not...due to Heisenberg's principle.
If photons are too tricky to work with, replace them with something else...
say and electron.
So, we can prepare an electron to have a definite momentum, right? And if we measure the momentum (an observable), we will know its value deterministically.
But if we had chosen to measure a different observable, say its position, then Heisenberg says that we can't know it deterministically.
So, just because we prepare a quantum system to be in a certain state, doesn't mean that all of its associated observables will be known deterministically; it may be that we only know one deterministically...
If you know momentum of a particle at a particular time you cannot measure it's position accurately, simultaneously
That's what the uncertainty principle mean in the most simplest form
If you prepare a particle say an electron in a particular state say particular momentum, you may not have it's correct position and vice versa
@NaveenBalaji do you mean in a hollowed sphere or a solid one?
Because in a hollow sphere, the charges are only at the boundary, which in turn gives the electric field inside to be zero and potential to be constant
@user193319 Yes but only in the case of position, if you choose to measure the energy by preparing the electron in a certain state of momentum, you can measure it (upto a certain error in observations, of course)
What you can and cannot measure is given by the commutators.
@PM2Ring Why do I need a surfactant? (e.g soap?) I mean, putting it in the solution while the water evaporates will wrap the TiO2 particles in micelle which will stop the particles to go up with the water?
Also does that mean that if I add a surfactant to the TiO2 particles they will not be covered by the black dye?
@NovaliumCompany The Wikipedia article on e-paper says they use a surfactant, but it doesn't go into details. But I like ACM's theory. It may also reduce the tendency of the TiO2 particles to form clumps.
@NovaliumCompany Pour the sludge into a shallow dish, to increase the surface area, and to make it easier to get at once it dries out. Maybe cover the dish with thin cloth or paper so it doesn't get contaminated with dust.
@PM2Ring Does it mean that after I have the sludge of TiO2 particles and very little water, the TiO2 particles will be covered in surfactant and will not mix with the black dye? (which I will put in the baby oil together with the sludge of TiO2)
@NovaliumCompany I think so. And remember, you're going to do this first without the black dye, so you can see more easily what the TiO2 particles do when you apply the field.
I don't think they really offer anything, I think they're usually just the offerings from ISPs who offer email services to their clients anyways (e.g. gmx.de is just the "in-house" mailing service for 1&1)
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I wanted to know the time duration of my blocked account as I am currently unable to ask a question. I have tried in eve...