# @stem_antics on Instagram

- **Type:** Video
- **Original URL:** https://www.instagram.com/p/DQPKmw-kUTL
- **Gondola URL:** https://gondola.cc/posts/76866244-stem-antics-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/c4d20a1f09.jpg
- **Posted:** 2025-10-25T15:18:58.000+00:00
- **Account Owner:** Stem Antics (@stem_antics) — https://gondola.cc/stem_antics

## Caption

⚡️ 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

## Stats

- **Views:** 0
- **Likes:** 149
- **Shares:** 0
- **Comments:** 12

## Credits

No public credits are recorded here. This does not identify who made the post.

## Tags

engineering, stem, teslacoil, innovation, electricalengineering, musictech, soundphysics

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