Four great medicos and mavericks risked their careers testing these ground-breaking medical inventions. Psychiatrist Dr Joh Cade discovered the psychological effects of Lithium on his bipolar patients after first testing its toxicity on himself. Dr Mark Lidwill worked in secrecy on the world's first Pacemaker following his experiments on the hearts of recently deceased patients. Prof Fiona Wood developed a process to help severe burns victims recover quickly with Spray On Skin, and the Ansells helped fight infection with their Disposable Medical Gloves.

The Inventors who got us airborne typify tenacity and perseverance. Lawrence Hargrave, who was ridiculed for his Box Kites, laid the foundation for all modern aviation. David Warren's Black Box helped make flying the safest form of transport, but he faced staunch resistance getting it off the ground. Jack Grant persisted for 10 years to get his lifesaving Slide-Raft into planes. While it took 60,000 years for the inventors of the returnable Boomerang to receive recognition for their aeronautical achievements.