Laughing, flywheel-driven mechanical bellows robot

WAHHA GO GO is a mechanical Japanese laughing robot that uses a flywheel and bellows; the accompanying text says something like, "Moving the bellows with the rotation of the flywheel energy in the wind 'artificial vocal'. Rashitsutsu the
'Pitch' 'formant' "amount of air flow' to control the machine like a human laugh."

WAHHA GO GO
(via JWZ)