The Asia Pacific Network of Science and Technology Centres (Aspac) conference is being held for the first time in New Zealand and has attracted 116 delegates from 56 science centres and 19 countries, including China, Japan, and Malaysia.
During the conference, Mr McGowan played a theremin, an early electronic musical instrument, which is named after its Russian inventor, Prof Leon Theremin, who patented it in 1928.
The musician does not touch the instrument to play it but two metal antennas sense the position of the player's hands and control oscillators for frequency with one hand and volume with the other.
Mr McGowan took part in a two-theremin performance of a musical work yesterday morning and again demonstrated the instrument's range of sometimes eerie sounds in the afternoon.
Museum exhibitions, development and planning director Clare Wilson said conference delegates had provided "very positive feedback" about the conference and were enjoying the Otago Museum experience and what was for many, their first taste of Dunedin.
