Recent content by DarkBabylon

When I wrote the '2<x<5' thing, I gave an example of a region you check if there are any particles there, rather than a width of measurement. The width in that case would be 3. Our only limit is the standard deviations, so now the question is how percise you want the momentum and position...

Alright so let me phrase myself better. The act of tunneling itself is what I am in agreement with, but not instantaneous, as that can't happen. Thing is particles behave like waves in the quantum world, so their wave function always spread. THAT'S why you have to wait a really long time. The...

In principle, yes, although through the numerical solutions of the schrodinger equation, one can see that it is not simply let an object sit: a) It must not be measured, or interact with anything, EVER. b) The wavefunction spreads with finite speed, so in a sense the object is already on the...

Welcome to the physics forums! For starters I would like to clarify that what you refer to as "actual physics" is more commonly known as "classical physics", as quantum mechanics is (a huge) part of physics. (not to demean the classical physics, as it is still useful in many applications) Now...

Hello, we were introduced to qunatum physics this semester. We were tackling the problem of particles sent with a certain value of energy into a potential well as well as a barrier. The not so very new thing to me was that the probability is non zero in places where the potential is higher. In...

I think something is missing here. What is missing is that whether f(r) is zero at every single point in space or just at a particular distance. There is another thing: When you are integrating you are essentially summing up a multiplication of the function by very small differences in x. Simply...

Hello, I have been working on a little movement system in a program called Game Maker: studio. The code works fine on the programming perspective, but something I did not expect happened: When I ran the code by adding to the speed while pressing a key, and every step passively subtracting from...

Can you reference where that comes from? One would expect it would be explained somehow there.

Been thinking to make a quadcopter, not a huge one, a fairly small and light one to start out with. The problem is I would like it to read the RPM of each engine separately. There are several ways I have came up with: - One of them is to use the current reading and calibrate it, however using...

Oh, right. o0) Thanks.

One thing I can read from the web, and is unsurprising to me, that free electrons would be stopped by a few millimeters of aluminum. Basically shielding wouldn't be hard at all, at worst it is probably a trip costing 2$ at least to the supermarket and back.

Hello there. I've been working on trying to re-derive a certain physical formula using vector calculus, and came to a conclusion that in order to derive it, I'll need a way to determine the nature of a certain expression. Specifically: ∯f(v)·da - v={x1,x2,x3,...,xn} and f(v) returns a vector in...

Well, seeing as that is the easiest option, guess I'll go with that, thank you very much.

I can't really speak in the language you are using. What I can say is that the Arduino (Uno, which I intend to use) is able to give a binary signal in the 14 pins it provides, and 8-bit PWM signals on 6 pins out of the 14. There is an ICSP interface which I have yet to learn about. Guessing that...

Well it kind of is in the definition of work. Some forces don't really care about the path you take, you always end up with the same energy as long as the end points are the same [correction from: the path is the same]. Mathematically, in vector calculus it is a consequence of stoke's theorem...