Avoid feeling overwhelmed during your long and hectic workday by getting lost in this rheoscopic fluid planet. Each tiny planet is filled with a mixture of unique liquids that combine to create mesmerizing patterns and effects when the ball is shaken or bounced. This liquid can effectively visualize the state of liquid flow, such as convection and laminar flow.It looks just like a ball with pearl inside when standing still. Shake it a little bit and you can see the mystery of it. The fluid inside flows beautifully like a cloudy mist and soft moving silk.