Mario Tonda
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Invisible Speaker whatever you listen to...wouldn't it be great to hear it...not…

Invisible Speaker whatever you listen to...wouldn't it be great to hear it...not…

Wooden iPhone acoustic amplifier

Wooden iPhone acoustic amplifier

Traverse flute in C, by P.J. Bressan, London ca.1700. Instrument is made of…

Traverse flute in C, by P.J. Bressan, London ca.1700. Instrument is made of…