Building a Spinning Water Demo


I've built this classic demonstration that help visualize the effects of the centrifugal force.

This is a beautiful example of how we can use a real world physical system to obtain a basic mathematical curve. In my next video I'm going to derive this function, but in the meantime feel free to do it yourself as a nice exercise.

This was my first attempt at concrete casting and it came out better than expected! I even embedded a custom 3d printed part in the mold, to make the part actually functional.

Oh and here's a fun gif I made :)

spinning water centrifugal force demonstration experiment parabola

If you wish to build this for yourself, I've made a pdf with the dimensions I used. Keep in mind that this is not a complete set of plans:

spinning water centrifugal force demonstration

The 3d models used in this build can be found on my thingiverse page:

bearing holder for spinning water centrifugal force demonstration

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