⚡️ When high-voltage sparks meet music: a glimpse into the science of the singing coil 🎶 What you’re seeing is a Tesla coil whose electrical arcs are modulated at audio rates, turning raw voltage into sound waves.  Here’s the breakdown: • A Tesla coil oscillates at radio-frequency (tens of kHz) between its primary and secondary circuits.  • To make music, that high frequency is interrupted or modulated by a controller (often MIDI driven) at audible frequencies (~20 Hz–20 kHz).  • Each spark generates a pressure wave in air (like a tiny thunderbolt), which we hear as tone or rhythm.  💡 Why it matters: It blends electrical engineering, resonance, sound design and spectacle in one. 👉 Save this post if you want to deep-dive into building one or the safety trade-offs. ✍️ Comment: What’s the wildest instrument you’ve seen used in STEM demos? #STEM #engineering #electricalengineering #teslacoil #musictech #soundphysics #innovation