The trephine: like a hole in the head
The bone saw: cutting-edge surgery
The mask and personal protection
The microscope and the hidden world of germs
The stethoscope: listening to the patient
The ether inhaler and the conquest of pain
The hypodermic needle and syringe: at the sharp end of treatment
Obstetric forceps: modern methods for birthing babies
The x-ray machine: making the body transparent
The ECT machine and shocking approaches to mental illness
The prosthetic hip: a triumph of orthopaedics
The heart-lung machine: how the impossible became possible