Transjuicer represents the culmination of several years of work on the piezoelectric nature of the bone matrix in order to make bone audio speakers. So what does the cow bone audio speaker, the piezoelectric transducer, actually transduce? At the purely material level it transduces electromagnetic waveforms—in this case of bone songs and cow songs—into nano-sonic vibrations. These vibrations have been recorded using a laser interferometer and can be listened to on headphones. At another level again, the speaker transduces between macro social context and micro technical interventions, between the cow and the gallery, between the dead and the living, between the performance of science and its representation.