Aquarist Andy;2958006; said:Must be thirsty work (beer bottle caps)
Very impresssive, nice high-speed photography.
OK, I'll take a guess how it works: mic attached to op-amp comparator, and final transistor for switching. Guess the mic is off-pic to the left.
(Sorry for the above techno-waffle guys - talking like this does nothing for my MFK street-cred !)
Pretty much! And yes, that is thirsty work. I'm a bit hung over now because of this thing....
)