More gadgets like this: here
Here is a 3D printed desk toy that creates a wave-like pattern that happens when a droplet lands on water. Simply crank the handle on the side to generate movement. If you have access to a 3D printer, you can easily print the parts to make your own desktop toy.
Water Experiment No. 33 Automata Video
As the maker explains, this desk toy was inspired by Dean O’Callaghan’s amazing kinetic sculpture (see above video).
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