Rheoscopic fluids allow the currents and turbulence in fluids to be seen. They’re typically made with mica, a mineral that forms small shiny flat plates that easily moves within a fluid.You can find them in science museums (such as the Glasgow Science Centre), or as art displays (most famously, the Kalliroscopes of Paul Matisse)
I’ve always loved the way the fluid moved within these displays, and I wanted to build something that didn’t require interaction. I also thought it would be interesting to light them from within or underneath, rather than relying on light reflecting off of the mica plates.
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