Yes, there is a mechanical brain in existence. The earliest model form 1950 is known as SIMON.
mechanical brain
The bones in the skull
mens nackal
Sound is a mechanical wave, and mechanical waves need something to travel through.
because it has no brain
Brain cells, mainly neurons, are what make you and make how you work. Without brain cells you could not exist.
yes
it didn't its just your Brain
its in madam tussards, London
Nothing, unfortunately. Mechanical solutions exist... google lithotripsy.
THe central nervous system
No, eyes are physical and cameras are mechanical. Yet, you do have memory to keep images in your brain.