3d Definition and 1000 Threads

Hi all, Having some trouble getting the final answer on the question below, the fact that the cube doesn't have a force in the x direction is throwing me off. Once I fine the force(??) in the x-direction, I can just use the generalized Hooke's law to obtain strain? Any help is appreciated...

Why does it look like a ripple on a pond instead of a three dimensional object?

Hello, PhisicsForumsWe are a group of students from the Avans University of Applied Sciences. We're currently doing a project where we have to design and make a 3D pong console. The idea of the project is to make a "Dedicated Video Game Console" that can be remotely controlled by remotes using...

I created this animation to celebrate Pi Day yesterday and thought Id share it with you guys :) BENBOBBY.

Hello, I was interested in making a game that renders 3d objects in the way they would look like in viewing them in real life. Rendering 3d objects takes lots of memory and processing power, and it may lag easily. So, I was wondering, what should I do to maximize efficiency in rendering 3d...

I'm a new user to both PF & Maxwell 3D. I've been having a lot of problems trying to draw a helical coil in Maxwell 3D v11. the problem is how to connect the two tub in 3D here is the image imported MAXWELL...

Does anyone know of any tools/graphs that show relationships in networks in a more "smoky" form that evolves in time? Preferably that correlates with spatial location though not necessarily to a map. This is a "normal" picture and not what I am looking for, rather something for which the...

Hey I have a function of x,y,z and i want to have a 3D graph of it. i was thinking maybe there is a color option that corresponds with the value of the function, something like DensityPlot in Wolfram but in 3D instead of 2D. the result should look like a box filled with semi transparent color...

I've made a virtual solar system in Java3d. I'm trying to implement the orbiting of planets and ships. I get the basic formula F = G((m1*m2)/r^2))[\code] and saw a discussion here about the formula in 3d but, I don't know how to read a letter with an arrow over it, lol. Can someone help me...

hey there, i haven't find a better foru to post this, so i hope I am in the right place/ im looking for a 3d grapher saftware but good one, that can do directional directional derivative exc. so if u know about something thatll be great, thx!

Do you just cube a variable? How does it work? Has this been figured out yet? Any thoughts if it hasn't? Any applications if it has?

Hi I'm having an issue ANSOFT MAXWELL : Assigning a permanent magnetic material to a body (for ex NDFE35) provides me a means of setting the magnetization direction (through x,y,z unit vectors ) inside the material settings so if i have multiple PM bodies rotated :- 1- do i need to create a...

Can anyone give me a really simple example on how to use the eqn above to solve it? The eqn is the modified schrodinger eqn that takes into account relativity.

Can anyone give me a really simple example on how to use the eqn above to solve it?

Homework Statement Temperature varies by function T(x,y,z)=3x + 4y + 2z Path is given by r(t)={ x(t)=\frac{t^3}{30}+\frac{16t}{9}+7 y(t)=-\frac{t^3}{120}-\frac{13t^2}{30}+28 z(t)=\frac{13t^2}{60}+\frac{4t}{3}-14 t\in \left[0,10\right] Question: What is the maximum and minumun temperatures of...

hi dear friends i face with this error in Maxwell 3d analysis please help me Surface recovery failure. Possible reasons: (1). Model has multiple objects with thin layers. (2). Complex model with object overlapping. (3). True surfaces are skewed what should i do?

How do I sketch the radial distribution of a $3d_{x^2-y^2}$ orbital? :D

So I was doodling around and came up with a problem of finding an equation for a tilted parabola. Basically, a parabola in xy plane which was rotated around a line that goes through points (1,0) and (0,1), making the curve a 3D one. I realize that this curve is a subset of points that define a...

I have a doubt in 3d geometry. I calculus and I know how to do partial derivatives.(but I don't know what it means). If you have a parametric equation ##x=t, y=t^2,z=t^3## (the equation is randomn) What does ##\vec{r}=t\hat{i}+t^2\hat{j}+t^3\hat{k}## represent? now if it represents the position...

Hello all, I know 3d gradients are often represented by gradient vectors but in the current project I am working on it would be a lot more convenient for me to do it this way if possible, the X gradient is given by Δy/Δx, and the Z gradient by Δy/Δz how can one obtain the Y gradient?

hello! is there a way to reconstruct a whole head, by having a profil and enface photo of the person? thanks!

hello! I am looking for a 3d printer that can print in wax is there any? thanks!

Sorry for the confusing tittle but I could not explain it better. Here is what I am trying to ask: When you have 2 axis(x and y) such as the image below, the sum of the two angles, a and b will always be equal to 90 degrees. a + b = 90degrees However when you add a 3rd axis(x, y and z, making...

Homework Statement Hi, An equation of the form Ax + By + C = 0 is a standard equation of a line in 2D. An equation of the form Ax + By + Cz + D = 0 is an equation of a plane. Is it possible to: Describe a plane in space, written in standard form, such that one variable is missing from the...

just as the title says, how is 4s ionised first if 3d is higher in energy? also, how does argon have a full outershell if its 3d is empty?

In adobe photoshop, is it possible to take and wrap a 2D texture onto a 3D model? And is it also possible to make a 2D object from a photo into a 3D one?

Hi all, I am after some help to find out how to do the following: I have a triangular object (weighing around 40,000kg) which I can measure and weigh. I have 4 load indicators I can position anywhere beneath the object, these will give me a very accurate reading of the weight of the object at...

I was thinking of buying this: http://printrbot.com/shop/simple-metal-kit/ Model: 1403 Build Volume: 6″ x 6″ x 6″ / 150mm x 150mm x 150mm / 216 cubic inches Print Resolution: 100 Microns Print Speed: 80mm/sec max recommended Filament: 1.75mm PLA (sample included) I have never used or bought...

Hi All, I'm starting using ANSOFT MAXWELL and stuck in simulating a Transient 3D solver i'm simulating a simple permanent magnet setup (attached an image) to examine fields/forces/motion M1 is rotating around Z-Axis while M2 is fixed out of the motion setup I'm seeking some guidance to get...

Hi i want to know how to make a 3D metal box whose length, width, and height i can change. For example, i have a box of 3 m x 3 m x 3 m. i should be able to extend any dimension by a maximum of 1 meter i.e 4 meter (say). I want to use this to store items whose size is unknown, but the limits of...

Hi all, I'm currently working on a 3D game and am in the city development phase (its done procedurally). The issue is is that once I get to 22 000 buildings (80 000-100 000 models roughly) it causes a drop to 5fps(frames per second) (even with collision detection off). I'm using instancing to...

Hello! I need to build an electromagnet for my DIY project. But I have a problem with choosing right configuration. But I have not found any open-source or student-license software for this goal... It would be great if someone could post some links to that kind of software.

Hi everyone, as the title says, I am looking for a 3D cad to help visualise designs in piping systems and cut down errors. As a short background, I work in a small company which occasionally designs industrial gas pipings for pneumatic systems, gas delivery systems (to a lab, workshop, etc)...

Hey guys :)Can anyone point me in the right direction on where to start with 3D printing engineering? I'm kinda lost but I'm super pumped and very very motivated to learn this stuff!

Hello, I have a three dimensional FDTD code. The problem I have for simulation is one dimensional. How can I use this 3D FDTD code for the 1D problem. The 1D problem is like this: in one-dimension half of the problem space is filled with a dielectric medium and the other half is free-space. A...

Hi experts! Do you know how to export an ANSYS model into STL format? I´ve only found some method for solid meshes here http://www.padtinc.com/blog/the-focus/color-3d-printing-ansys-ansys-mechanical-and-mechanical-apdl-results, but my model contains only BEAM4 elements. Would it be possible...

Homework Statement I am trying to find the direction of an E-Field from a given E-Field vector in 3d space. If I have an electric field vector of (-1i, -2j, 3k), the magnitude of the field is sqrt(-1^2 + -2^2 + 3^2) = 3.74, but how do I find the direction? Homework Equations tan(y/x)? The...

So for the longest time now i have always avoided trying to picture things in 3D or anything related to 3D whether it is maths, physics, chem etc. But recently i have been really attracted to physics and math and well i decided to just start studying both these subject whenever i have free...

Hello! There is a parametric way of defining a spiral curve: z = a*t; x = r1*cos(w*t) y = r2*sin(w*t). Is there a way to define the thickness of spiral?

Suppose, I know the metric tensor of a 2D space. for example, the metric tensor of a sphere of radius R, gij = ##\begin{pmatrix} R^2 & 0 \\ 0 & R^2\cdot sin^2\theta \end{pmatrix}## ,and I just know the metric tensor, but don't know that it is of a sphere. Now I want to draw a 2D space(surface)...

Let’s imagine a moving point bound to a 2D plane. If we wrap this plane on a sphere within a 3D space the point would now eventually end up at the same position while moving in a seemingly fixed direction (it is actually not fixed in the 3D space). I am now wondering: Can a 3D hyperplane be...

Homework Statement This is a pretty simple system but I'm supposed to use the methods described in Landau (equations below), which are integrables derived from energy conservation and angular momentum conservation. Homework Equations T=2∫_{r_{min}}^{r_{max}} \frac...

Can someone please look at the diagram below and tell me how u1 is obtained. If it is through the use of m3 please explain how the gradient m3 is obtained.

How would I plot a 3D phase and magnitude plot for the function \(z^{1/3}\) in Matlab? n = 3; % number of roots m = 18; % grid number r = (0:m)'/m; % radius vector theta = pi*(-n*m:n*m)/m; % angle vector z =...

I plotted the real and imaginary parts of a complex function \(z^{1/3}\). The two plots are similar to the Riemann surface is that correct?

EDIT: There was an issue where half of the post was missing, so I apologise but i have redone it I was not sure if this was the most appropriate forum for this or not, so feel free to move if needed. 1. Homework Statement A football (soccer ball) with a diametre of 0.44m is tracked using a...

Homework Statement A man is standing in his home , his position his facing direction and the position of the sweet dish are given ,if he faces the sweet dish , he eats it . Translating it into CS programming question : write a function -> bool IsManInFrontofDish( vector3& manPosition, vector3&...

How the brain creates 3 dimensional image (what you see) from information that photons carry to your eyes? Photons travel with constant speed so your brain can't calculate how far object is from their velocities. I know stereoscopic vision helps to calculate distance from objects but even when...

Homework Statement This is not homework but relevant to an interaction model that I am developing. I assume an even distribution of sources on a spherical 3d-hypersurface, the sources having a potential as a function of pairwise 4-distance between any two sources. I wish to obtain the sum...

Dear Friends! How can I find the minimum value of sum of cosine of angles between three unit vectors in three dimension space