@M.N.Raia I've got nothing for ya, sorry. This is a question that not many people may have the answer to. Maybe try pinging JohnRennie? I'd give it a shot. But I'm not sure if he would know. Also maybe try the Electrical Engineering SE chat room. They might know. But that is a question I don't think many know the answer to. I wish I could help more.
@M.N.Raia I'm just giving suggestions that I think have a good chance at helping you get an answer. But again I'm not entirely sure if they'll have the answer. Sorry that I couldn't be more helpful.
@JohnRennie I'm so sorry to disturb you, but do you think you know the answer to M.N.Raia's question? And do you think I gave good recommendations?
It is known that Gauss's law for the electrostatic field $\mathbf{E}$, in the SI, is given by the equation
$$
\int_S \mathbf{E}\cdot \mathrm{d}\mathbf{a}=4\pi k_e Q_{\text{ encl}} \tag{1}
$$
where $k_e$ it is the electric constant, $S$ it is the gausssian surface and $Q_{\text{ encl}}$ is the q...
I saw that this question: Einstein's initial clue that spacetime is curved is being flagged as off-topic , as it belongs on History of Science SE. However, there is a tag here for 'history' and it seems that historical questions have been accepted here in the past.
Presumably, the situation has...
@M.N.Raia presumably that's what all textbooks on signal transmission and antenna theory do. Have you looked at any? If so, what is it about them that you don't like? If not, then go look for some.
@EmilioPisanty Were you just expecting to cast a vote but forgot you would hammer it? (FYI I think the closure is good here, ACM's answer just points to the same question)
We've already had people ask if they can decline the ability that comes with a gold tag badge to insta-close-as-dupe questions in their tags. I did this by accident today myself.
On reflection, I decided not to reopen, and my asker thanked me for finding the dupe, so that question is staying clo...
I kinda get why they wouldn't want to differentiate them, but at the same time, a reminder that you hold the fate of random SE questions in the balance would be nice.
@NovaliumCompany Certainly not, the "wizarding school" is an old trope appearing as early as 1953 in The Wall around the World and more famously in Le Guin's A Wizard of Earthsea (1968)
Do we know if there's a center of the universe that everything spins around? I mean, moon spins around earth, earth spins around sun, sun spins around the milky way I guess... does it stop somewhere?
Basically I am required to calculate the average velocity of a point that is moving in a plane ( X and y coordinates ) and I am not sure what should I consider as distance (S) ? lets say I have two points P1 and P2 each with different X y coordinates and I am required to calculate the average velocity between P1 and P2 , do I say that V = the vector connecting P1 and P2 \ the time needed?
I can do this quite easily if I have a 1 Parameter diagram of S and time T but with two coordinates I really got lost since I am not sure what is the positive and what is the negative direction
@MadSpaceMemer SirCumference is saying that this might be better posed in a different chat room (Problem Solving Strategies) which is explicitly dedicated to this type of conversation instead of general physics chat
@MadSpaceMemer yes.
(though note that it is distinct from the average speed, which is generically larger and can be quite different.)
if you know the coordinates of P1 and P2, say, (x1,y1) and (x2,y2), then the average velocity is just v=||(x2-x1,y2-y2)||/(t2-t1)
hey yes that's exactly what I thought however there is one issue I do not understand
as far as my understanding goes the avg speed is also related to the direction, thus if you go from p1 to p2 and then back to p1 the average speed is 0 since the distance is 0
if you want me to respond to mathematics, you need to (i) properly define all the symbols you're using, and (ii) use proper notation. If you want to use mathematics in chat, the guidelines are in meta.stackexchange.com/a/220976, and if you don't know how to use LaTeX notation, a good tutorial is at math.meta.stackexchange.com/q/5020
Oh ok i am sorry. I guess i am talking about the average velocity. You see my problem is this. If i have a diagram with the distance shown at one axis. I can easily calculate the average velocity since its very clear to me if i am moving forward or backward. However if i have 2 coordinates i am not sure anymore if i am moving positively or negatively. How do you decide that? Or is my question unclear / not logical?.
@EmilioPisanty It's what most people probably end up actually saying, but you'd write it just Gaußsche (without the apostrophe, I just invented that :P)
@EmilioPisanty I love that me writing Gaußian never fails to elicit some sort of reaction from the readers ;)
But the guy's name is Gauß, and "Gauss" is only acceptable if you can't type a ß for some reason :P
@ACuriousMind Eh. If transcription of ß into the English standard alphabet bothers you, I hope you're writing Чебышёв, Колмого́ров and Арно́льд in full =P.
@ACuriousMind I feel you. I'm generally always on the corner of "look, that's the person's name, write it correctly and pronounce it correctly to the very best of your ability with an actual show of effort".
it drives me up the wall when people say "Hermite polynomials" in a way that rhymes with e.g. marmite
I don't think there's really an excuse for writing Shcroedinger instead of Schrödinger other than "my keyboard doesn't have umlauts"
but there just isn't a standard for including ß in English text much, right?
It is known that Gauss's law for the electrostatic field $\mathbf{E}$, in the SI, is given by the equation
$$
\int_S \mathbf{E}\cdot \mathrm{d}\mathbf{a}=4\pi k_e Q_{\text{ encl}} \tag{1}
$$
where $k_e$ it is the electric constant, $S$ it is the gausssian surface and $Q_{\text{ encl}}$ is the q...
