🌬️ Magic Sand
🌬️ Magic Sand — Patterns & Resonance
Blow the magic sand and watch it form beautiful patterns! When sand is blown across a vibrating surface, grains collect in quiet zones — revealing the hidden geometry of sound.
🔬 What It Demonstrates
Sand grains jump away from areas of high vibration (antinodes) and collect at still points (nodes). Different frequencies create different standing wave patterns — each frequency has its own unique geometry (Chladni figures).
🎮 How to Use
Use the blow gesture to scatter sand across the surface. Turn the vibration frequency knob to watch different patterns emerge. Try matching resonant frequencies to create the clearest symmetrical shapes.
💡 Did You Know?
This magic sand technique was discovered by Ernst Chladni in the 1780s to study violin acoustics. Today, engineers use the same principle (finite element analysis) to find resonant vibration points in aircraft wings and bridges.