Probably the earliest was the old telegraph relay, in which the energizing current moved an armature carrying a contact point to close a sounder circuit.
I will argue that the major VGlut2+ excitatory projection neurons of sound localization circuits (dorsal cochlear nucleus (DCN), lateral and medial superior olive (LSO and MSO)) represent serial homologs with modifications, thus being paramorphs.
Anatomical and physiological differences and the independent evolution of tympanic ears in vertebrate groups, however, argue for convergent evolution of sound localization circuits in tetrapods (amphibians, reptiles, birds, and mammals).
We knew even then that it had to be a mixture of television, open-circuit sound broadcasting, closed-circuit recording, correspondence and teaching.
Smith's high tenor voice made him a favourite on the sound system circuit after he voiced a number of dubplates at the legendary engineer King Tubby's nearby studio.
On the first day of the shoot when Arshad, "said his first line, he didn't sound like Circuit at all.
Thus, neural correlations in this early sound localization circuit are presumably mainly due to the shared acoustic stimulus.
Recording images and sounds in circuit boards does not destroy their copyrightability any more than does recording them on rolls of celluloid film.
While the arrangement may sound cumbersome, the circuits are so flexible they can even be attached to silk, chiffon and satin, the engineers say.
