MECHANICAL TECHNO DEMONSTRATION – YouTube
実験(まさに、工作や宿題とか)そっち系の、発明系?
Strange Musical Instruments Never Seen Before – Man Invents Hundreds of them – The Anarchestra
The 1000 OSCILLATOR MEGADRONE Is Complete! The KiloDrone Is ALIVE
Checking out a Massive Home Made Synthesizer and Other Mad Inventions
あ、e-DIYっすね。