• Question: How long did it take you to build the levitation device?

    Asked by xoxnutellaxox to Dave on 20 Jun 2013.
    • Photo: Dave Farmer

      Dave Farmer answered on 20 Jun 2013:


      Hello xoxnutellaxox,

      It didn’t take that long, it’s just a speaker and a block of aluminium. The bit that took the longest was getting an amplifier that could handle the ultrasonic frequencies built.

      Fortunately, we have a pretty good electronics workshop here in the Physics department so they built the amplifier for me. Just as well, I’m terrible at electronics…

      Dave

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