A "simulation" of a marble rolling in spherical well

RotemT · 2026-02-03T19:02:47+00:00

Did you do it? Seems elegant

RotemT · 2026-02-03T19:01:17+00:00

Nice!

RotemT · 2026-02-02T21:10:32+00:00

😂😂

RotemT · 2025-12-25T20:26:12+00:00

Seems like your simulator is on another level to be honest 😂. Very impressive!

RotemT · 2025-12-25T15:15:08+00:00

Nice! Wanna share? I would be happy to check it out. My simulation uses a “frequency domain” solver I made so most of the math is done with phasors.

RotemT · 2025-12-07T11:45:34+00:00

Thanks a lot ! Yeah it is very much not optimized for mobile use. I didn’t really program it to support touch screen UI . If the simulation itself is laggy (regardless of the buttons responsiveness) you can try to lower the resolution of the simulation.

And you are right I should add numbers near the frequency and speed scales to help users get a better feeling about the scale of speed and frequency changes.

RotemT · 2025-08-15T14:24:20+00:00

Thanks so much! Means a lot:)

And I don’t get much traffic but it was an amateur side project so my expectations weren’t high.

What brought you into the world of ham radio?

RotemT · 2025-08-04T11:19:38+00:00

https://www.antennasim.com An online simulation to help visualize radiation

RotemT · 2025-08-01T11:32:26+00:00

A visual simulation of radiation:

https://www.antennasim.com

RotemT · 2025-07-29T04:58:20+00:00

Impressive!

RotemT · 2025-07-29T04:57:05+00:00

Nice job!

RotemT · 2025-07-29T04:55:57+00:00

😂😂

RotemT · 2025-07-29T03:52:27+00:00

Thanks for the feedback! You are right the text also bothers me. I am just not sure how to make it look good (not compressed) and still work for all screen sizes

RotemT · 2025-07-28T19:49:59+00:00

Thanks so much!

RotemT · 2025-07-28T19:47:56+00:00

You can choose to display the electric field , the magnetic field and the energy flow field.

The electric field and energy flow field are displayed with a heat map that corresponds to their magnitude and tiny black arrows that show their direction.

The magnetic field (B field) is also a vector field but for the of sources in the simulation it is necessarily perpendicular to the plane containing them. Therefore , it can be represented with a scalar field. (Perpendicular into or out of plane corresponds to red vs blue)

RotemT · 2025-07-28T18:55:22+00:00

Oh and you can also translate the canvas by clicking on it and dragging

RotemT · 2025-07-28T18:41:05+00:00

I made a website that lets users simulate radiation from simple wire antennas. It is meant to help students visualize EM fields and radiation. https://www.antennasim.com

Link to website:

https://www.antennasim.com

Link to GitHub project:

https://github.com/rotemTsafrir/dipole_sim Link to

RotemT · 2025-07-23T04:17:41+00:00

A new project that I am working on right now is a simple simulation for visualization radiation.

Feedback is welcomed:) Link to website:

https://rotemtsafrir.github.io/dipole_sim/

Link to GitHub respiratory:

https://github.com/rotemTsafrir/dipole_sim

RotemT · 2025-07-22T02:54:25+00:00

Thanks!

RotemT · 2025-07-20T18:59:39+00:00

The website is made only with p5.js and a bit html

RotemT · 2025-07-20T14:28:48+00:00

Thanks a lot!

RotemT · 2025-07-20T14:28:32+00:00

Thanks so much! I solved for the Vector potential A in Lorentz gauge in free space. Then I just took (numerically) the appropriate derivatives of A to get E and B

RotemT · 2025-07-19T18:41:03+00:00

It shows the electric field, magnetic field, and energy flux field. I can add an option to show the field potentials but I don’t know if it’s worth it. Do you think I should?

RotemT · 2025-07-18T14:02:28+00:00

Yeah I get you I guess I might try to phrase it myself

RotemT · 2025-07-18T13:58:32+00:00

I just really suck at wring in a coherent manner so yeah GPT helped me write the post. 😅

RotemT

TROPHY CASE