Rheoscopic Sworld Mercury in PearlRegular price $18.95 Save $-18.95
The Bureau of Planet Shrinking used this Reduce-a-nator on a faraway planet to create this delightful rheoscopic sphere. Rheoscopic--what? Rheoscopic fluid is a special material that shows currents. Within this planet's shell you will see kinematic viscosity in action! Visualized currents in the sphere are beautiful and ever changing. SWORLD's shell is strong and resilient like you! So you can bounce it. Shake Twirl Bounce Calm. This ball has it all--play, mindfulness, fidget, and scientific curiosity!