Blender for Scientists - How to Quickly Create Electromagnetic Waves in Blender

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This video gives a quick description of using spiral curves to generate any wavelength you may want as well as some quick shading tips and animation tricks. Perfect for showing differences between wavelengths, absorption spectra, propagation of light, etc.

0:00 Introduction and precise approach
4:30 Animating along the wave
7:37 Quick waves
8:40 Getting precise colours for wavelengths
9:01 Standard laser wavelength asset

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Thank you for propelling the science illustrations. It really makes a lot of difference in my studies.

tejav

This is amazing. I started to play around with blender a couple of weeks ago and suddenly got the idea to make a short video for my kids, explaining how rainbows form. Not only is this exactly what I need, but it's also straight forward and well explained.
I did however change the order of adding the array and adding the subdivision, so i can customise the length of the propagation of the wave. It just happened to be more useful in my particular case
In any case, thank you for this! 😀

flakmoppen

A possibly easier way to create the sine curve might be to use the Mesh (Extra Objects)>Math Function>XYZ Math Surface.
Set X equation : u, Y equation : 0, Z equation : sin(u). You can set the amplitude and wavelength in the Z variable.
You can set the u length with the start and end points, and set the resolution.
Then convert to curve. No scaling to 2D, or need for the Array Modifier.

aliensoup

Thanks for this video, I need this information for a project I'm working on. Excellent Tutorial!

bobbyd

really amazing video sir! subbed immediately! :)

alirezaakhavi

Love the tutorial! It's exactly what I needed. This might be a bit of a basic question, but let's say I wanted to move the curve/cylinder off one of the 3 main axes (X/Y/Z), how to I maintain the curve modifier for the cylinder?

I have a glass tube I want to animate the wave going through at some arbitrary position (basically just not at the world origin), but as soon as I move the wave-curve the cylinder I've attached to the curve unwraps. I imagine there's some sort of function to define a custom reference axis for the curve so that the cylinder always follows it?

BobbyBroccoli