2014 $1 Medi-mazing - A Nation of Great Inventors Uncirculated Coin

In 1912, when Lawrence Bragg had the notion that X-rays could determine crystal structure, his bold ideas led to a Nobel Prize and the medical world embracing crystallography.

Many other Australians have taken risks with ideas that have since become medical breakthroughs:
The pacemaker (1926, Dr Mark C Lidwill), penicillin (1939, Howard Florey), IVF embryo freezing (1983, Professor Carl Wood) and spray-on skin for burns victims (1999, Professor Fiona Wood).