As it turns out those fine folks on the bottom of the world have come up with some amazing stuff. Here are some I found:
1838 Pre-paid postage - Colonial Postmaster-General of New South Wales, James Raymond introduced the world's first pre-paid postal system.
1843 Grain stripper - John Ridley and John Bull of South Australia developed the world's first grain stripper that cut the crop then removed and placed the grain into bins.
1856 Refrigerator - Using the principal of vapour compression, James Harrison produced the world's first practical refrigerator. He was commissioned by a brewery to build a machine that cooled beer.
1858 Football - In 1858 Tom Will and Henry Harrison wrote the first ten rules of Football, thus becoming the first people in the world to codify a kicking-ball game. These rules predate those of Rugby, Soccer and Gridiron. Football may have been inspired by the Aboriginal jumping/kicking game of Marn Grook.
1874 The underwater torpedo - Invented by Louis Brennan, the torpedo had two propellers, rotated by wires which were attached to winding engines on the shore station. By varying the speed at which the two wires were extracted, the torpedo could be steered to the left or right by an operator on the shore.
1876 Stump jump plough- Robert and Clarence Bowyer Smith developed a plough which could jump over stumps and stones, enabling newly-cleared land to be cultivated.
1885 Telpahane - The forerunner of the television. It was invented by Henry Sutton in Ballarat.
1879 Refrigeration - Credited with the manufacture of the first artificial ice, Eugene Nicolle and Thomas Sutcliffe Mort developed shipboard refrigeration that resulted in the export of meat from Australia to Great Britain.
1889 Electric Drill - Arthur James Arnot, patented the world's first electric drill on 20 August 1889 while he was an employee of the Union Electric Company in Melbourne. He designed it primarily to drill rock and to dig coal.
1894 First powered flight - Perhaps inspired by the boomerang, Lawrence Hargrave discovered that curved surfaces lift more than flat ones. He subsequently built the world's first box-kite, hitched four together, added an engine and flew five metres.
Hargrave corresponded freely with other aviation pioneers, including the Wright Brothers. But unlike the Americans who monopolised their ideas, Hargrave never patented his. Because it promised public access, Hargrave left all his research to the Munich Museum.
Had Hargrave gained local support to further develop his ideas and not been so generous in sharing his ideas with other aviation pioneers, he probably would have been the first person in the world to achieve sustained and controlled powered flight.
1897 Differential gears - David Shearer of South Australia built a steam car with a differential inside left rear wheel hub.
1900s - The 'Australian Crawl' - For most of human history, humans didn't know how to swim effectively. In the 1900s, Australians invented the Australian Crawl that has since become known as 'overarm' or 'freestyle' swimming stroke.
1902 Notepad -For 500 years, paper had been supplied in loose sheets. J A Birchall decided that it would be a good idea to cut the sheets into half, back them with cardboard and glue them together at the top.
1903 Froth flotation process- The process of separating minerals from rock by flotation was developed by Charles Potter and Guillaume Delprat of New South Wales.
1906 Feature film - The world's first feature length film, The Story of the Kelly Gang, was a little over an hour long.
1906 Surf life-saving reel - The first surf life-saving reel in the world was demonstrated at Bondi Beach on 23 December 1906 by its designer Lester Ormsby.
1907 First international ski tournament - Australia doesn't have much snow and it is isolated from most countries that do. Even so, in 1907 Australians somehow organised the first fully documented International Alpine Ski Carnival. The downhill event was won by Charles Menger (Denver, USA), second was R. Paterson (Australia) third was Earl Prince (England).
1910 Humespun process -The Humespun process was developed by Walter Hume of Humes Ltd for making concrete pipes of high strength and low permeability. The process revolutionised pipe manufacture in 1910 and has since been used around the world.
1912 The tank - A South Australian named Lance de Mole submitted a proposal, to the British War Office, for a 'chain-rail vehicle which could be easily steered and carry heavy loads over rough ground and trenches'. The British war office liked the idea but then developed the tank themselves without paying royalties.
1913 Automatic totalisator -The world's first automatic totalisator for calculating horse-racing bets was made by Sir George Julius.
1917 Aspro - A pain reliever based on aspirin was developed in Melbourne by George Nicholas. By 1940 it had become the world's most widely used headache and pain treatment.
1922 Vegemite - One of the world's richest sources of vitamin B, vegemite was invented by Dr. Cyril P. Callister. It is made by the autolysis of expired brewer's yeast: a process where the yeast's own enzymes break it down.
1924 Car radio - The first car radio was fitted to an Australian car built by Kellys Motors in New South Wales.
1927 Speedo -In 1927 Speedo launched the revolutionary 'racer-back' style, which reduced fabric drag. In 1955, Speedo introduced the use of nylon for their racing swimwear. At the 1968, 1972 and 1976 Olympics, more than 70 per cent of all swimming medals were won by competitors wearing Speedo.
1928 Flying Doctor Service - Reverend John Flynn founded the world's first Aerial Medical Service in 1928 .
1930s - Nuclear Fusion - In the early 20th century, Mark Oliphant worked on the artificial disintegration of the atomic nucleus and positive ions, and designed complex particle accelerators. He discovered helium 3 and tritium, and also discovered that heavy hydrogen nuclei could be made to react with each other. This fusion reaction formed the basis of a hydrogen bomb.
1934 Ute- The utility vehicle, with a front like a car and a rear like a truck was designed by Lewis Brandt at the Ford Motor Company in Geelong, Victoria.
1940 Zinc Cream - This white sun block made from zinc oxide was developed by the Fauldings pharmaceutical company.
1942 Transverse folding stroller - Designed by Harold Cornish, the sturdy, lightweight design of his Stoway Strollers made life easier for many parents using public transport as it could be folded and placed under a tram seat.
1944 Antibiotic penicillin- Produced by Howard Florey with help from a Pome named Ernst Chain.
1945 The Hills Hoist - A rotary clothes line with a winding mechanism allowing the frame to be lowered and raised with ease. Invented by Lance Hill.
1952 Victor mower - by Mervyn Victor Richardson, the two-stroke petrol lawn mower with rotary blades revolutionised mowing world wide.
1950s Lagerphone- The lagerphone is a musical instrument made by nailing beer caps onto a stick. It is not known who invented it, but in the 50s it was popularised by the Heathcote Bushwackers as an alternative to the American wobbleboard.
1950s Distance Measuring Equipment - Every airliner in the world uses a piece of navigation equipment called DME, or Distance Measuring Equipment.
1952 Atomic absorption spectrophotometer -Atomic absorption spectrophotometer is a complex analytical instrument incorporating micro-computer electronics and precision optics and mechanics, used in chemical analysis to determine low concentrations of metals in a wide variety of substances. It was first developed by Sir Alan Walsh of the CSIRO.
1953 Solar hot water - Developed by R N Morse at the CSIRO
1957 Flame ionisation detector -The flame ionisation detector is one of the most accurate instruments ever developed for the detection of emissions. It was invented by Ian McWilliam. The instrument, which can measure one part in 10 million, has been used in chemical analysis in the petrochemical industry, medical and biochemical research, and in the monitoring of the environment.
1957 Trousers with a permeant crease - The process for producing permanently creased fabric was invented by Dr Arthur Farnworth of the CSIRO.
1958 Black box flight recorder - The 'black box' voice and instrument data recorder was invented by Dr David Warren in Melbourne.
1960 Plastic spectacle lenses - The world's first plastic spectacle lenses, 60 per cent lighter than glass lenses, were designed by Scientific Optical Laboratories.
1961 Ultrasound - David Robinson and George Kossoff's work at the Australian Department of Health, resulted in the first commercially practical water path ultrasonic scanner in 1961.
1965 Inflatable escape slide - The inflatable aircraft escape slide which doubles as a raft was invented by Jack Grant of Qantas.
1965 Wine cask -Invented by Thomas Angrove, the wine cask is a cardboard box housing a plastic container which collapses as the wine is drawn off, thus preventing contact with air.
1970 Variable rack and pinion steering - The variable ratio rack and pinion steering in motor vehicles was invented by Australian engineer, Arthur Bishop.
1970 Staysharp knife- The self-sharpening knife was developed by Wiltshire.
1972 Orbital internal combustion engine - The orbital combustion process engine was invented by engineer Ralph Sarich. The engine uses a single triangular-shaped piston to create five combustion chambers as it orbits inside a single cylinder. It is 40 per cent lighter, 60 per cent smaller and 35 per cent more efficient than standard car engines. Today, it is used in two-stroke engines, boat engines, motorbikes, lawn mowers and some small cars
1972- Instream analysis - To speed-up analysis of metals during the recovery process, which used to take up to 24 hours, Amdel Limited developed an on-the-spot analysis equipment called the In-Stream Analysis System, for the processing of copper, zinc, lead and platinum - and the washing of coal. This computerised system allowed continuous analysis of key metals and meant greater productivity for the mineral industry worldwide.
1978 Plastic injection moulding software -Engineers at Moldflow Pty Ltd revolutionised the plastic injection process with a new computer aided engineering software, that simulated the injection moulding process and offered a design strategy to evaluate, refine and optimise successive simulations. The technique has been used widely in the automotive, whitegoods, computer, packaging, communications, aeronautical and photographic industries.
1979 Race-cam - Race Cam was developed by Geoff Healey, an engineer with Australian Television Network Seven in Sydney. The tiny lightweight camera is used in sports broadcasts and provides viewers with spectacular views of events such as motor racing, which are impossible with conventional cameras
1979 Bionic ear - The cochlear implant was invented by Professor Graeme Clark of the University of Melbourne.
1982 The dual flush toilet - As dunnies have a celebrated status in Australia, it is apt that Australia has taken a central role in their evolution. In 1982, the dual flush toilet was responsible for savings in excess of 32000 litres of water per household a year. Pretty important in the world's dries inhabited continent.
1980 Wave-piercing catamarans - The high speed catamarans were developed by Phillip Hercus and Robert Clifford of Incat in Tasmania.
1983 Winged Keel - Ben Lexen designed a winged keel that helped Australia II end the American's 132 ownership of the America's cup. The keel gave the yacht better steering and manoeuvrability in heavy winds.
1984 Frozen embryo baby- The world's first frozen embryo baby was born in Melbourne on 28th March 1984
1984 Baby Safety Capsule - Babies in a car crash used to bounce around like a soccer ball. In 1984, for the first time babies had a harness for their safe transportation in cars.
1986 Gene shears - The discovery of gene shears was made by CSIRO scientists, Wayne Gerlach and Jim Haseloff.
1992 Multi-focal contact lens- The world's first multi-focal contact lens was invented by optical research scientist, Stephen Newman in Queensland.
1992 Supersonic combustion - The University of Queensland demonstrated the world's first supersonic combustion in an atmospheric flight test at Woomera on July 30, 2002. The craft reached speeds of more than Mach 8, or 8 times the speed of sound.
1993 Scramjet - The University of Queensland reported for the first time the development of a scramjet that achieved more thrust than drag.
1993 Underwater pc - The world's first underwater computer with a five-button hand-held keypad was developed by Bruce Macdonald at the Australian Institute of Marine Science.
1995 EXELGRAM - The world's most sophisticated optical anti-counterfeiting technology was developed by the CSIRO.
Hyshot Scramjet Engine - a very high speed air-breathing jet engine currently in the testing stage developed by a team from the University of Queensland led by Professor Allan Paull. In June 2007, it was successfully used to boost a test vehicle to hypersonic speeds.
Whoda thunk? It must be all those wide open spaces that contributes to all that free thinking.
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I live in australia and didnt even know half of it, mmm maybe I should have listen more in class 
