20 Australian inventions that changed the world By HairyChickens 1889 Electric drill 1920 Electronic pacemaker 1939 Medical application of penicillin 1950 Black box flight recorder 1957 Permanent-crease clothing 1960 Plastic spectacle lenses 1965 Inflatable escape slide and raft 1970 Cochlear implant (bionic ear) 1972 Permaculture 1976 Ultrasound scanner 1976 Triton Workcentre 1979 Racecam 1983 Winged keel 1988 Polymer bank notes 1992 Wi-Fi technology 1993 Frazier lens 1999 Spray-on skin 2000 Google Maps 2006 Gardasil and Cervarix cancer vaccines 2008 Tank-bred tuna system