Imagine a world without wi-fi or clothes lines or lawnmowers or Vegemite or dual-flush toilets or even mousetraps. Weird, huh? These are just a few of the many inventions that have been created by clever Australians to solve some of life's difficult problems. PROBLEM- How do you find clues that are invisible to the naked eye at a crime scene? PROBLEM- How do you help a deaf person to hear everyday sounds? PROBLEM- How do you access the internet without having to plug in your computer? In Australia's Greatest Inventions and Innovations, you will find out about our nation's most ingenious inventions, their makers, and how to turn a bright idea into a useful creation. Be inspired!