The British Medical Journal is launching a competition to decide the greatest medical breakthrough of all time. Here's the shortlist:
Anaesthesia, Antibiotics, Chlorpromazine, Computers, DNA, Evidence based medicine, Germ theory, Imaging, Immunology, Oral rehydration therapy, The Pill, Risks of smoking, Sanitation, Tissue culture, Vaccines
The device to the left is an 1850s invention by John Snow: a chloroform inhaler.
--TwoDragons