In conjunction with the Powerhouse Museum comes this comprehensive guide to Australia's most innovative inventions as well as their amazing creators. Imagine a world without wi-fi, clotheslines, lawnmowers, Vegemite, 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. Find out about Australia's most ingenious...