Very very neat! Thanks for sharing! If I understood correctly: is the front of the white lines equidistant from the starting point?

Now the distance between the lines are set by the mesh-size, how does it work in reality? I presume current is flowing 'everywhere' and due to irregularities in the material or by the geometry you get local maxima of current causing it to heat up and burn the material. I don't see easily what the length-scale is in reality; any thoughts?

- Congratulations! This post is now a Staff Pick! Thank you for your wonderful contributions. Please, keep them coming!

Could I know how to creat a such blue line in front-end?

I also don't know how to create such gray line in official documentation

Hi Yode,

you can create such a blue line inside notebooks simply by placing you mouse over a "new line" (when you see that + at the beginning), and then by making a right click:

I regard this as a nice feature and use it quite often. I have no idea about those gray lines ...

Regards -- Henrik

Hello Carl,

thank you for your interest in my little playing around! As a start you of course can use the respective notebook I supplied. Just let it run and you get all these figures. (I do not have any experience with mobile apps.)

Regards -- Henrik