Watch the rhythmic motion inscribing beautiful patterns into the sand and be mesmerised. The pendulum rocks through the fine sand it gently ˜writes' an ever changing geometric pattern.The patterns change size as the arc of the pendulum changes. The 38cm version has a black stand and is perfect to sit on your desk and watch the patterns transform before your eyes.The simplicity of a pendulum belies its scientific importance, as it has been used to demonstrate a plethora of principles, including the rotation of the Earth, and has been used to detect earthquakes for over a millennium. A fabulous gift for the ˜hard to buy for' older child or adult.
Features:
- Metal pendulum 38cm
- Black stand
- Fine sand
Notes & Tips:
- Ages: 8+