I don't know about you, but I find it incredibly relaxing to watch a conveyor belt transport sand. Perhaps this is because when I was a child, we often had a large heap of sand in the back of the garden, where I spent substantial time playing. But I suspect…

This simulation was requested in a comment to a previous video. It shows particles having the shape of equilateral triangles, interacting (mostly) via contact forces. The particles are subject to gravity, and initially land in a funnel-shaped container. Once…

Like the video https://youtu.be/Dsa6xj6tARo , this one shows triangles interacting via contact forces falling through a funnel. There are two differences, however: the funnel is steeper, and the triangles also interact via a torque tending to anti-align their…

This video uses the same principle as the video https://youtu.be/6mTqTptTj-4 , in which triangles with a contact interaction and magnetic-moment type interaction were thrown into a funnel. Here the triangles have been replaced by squares, and they have unintentionally…

This is a variant of the video https://youtu.be/zvhWklW_XlQ showing magnerized squares thrown into a funnel, but with hexagons instead of squares. The behavior turns out to be quite different, and much closer to that of a sand pile, including avalanches.…

From my album Home. Listen on Spotify: https://open.spotify.com/album/6FtTv4UjQAJSJLfx9tdc2w?si=y8TYl6l2RfyeNIl3TZthCQ

Video made between 6 April 2010 and 19 May 2013. I had a major period of procrastination after which I decided to start an idea called…