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Australia, the magazine : Australia, the magazine
great ideas 17 CONTRIBUTIONS. BY JESS NOBLE UP TO DUBAI So you've constructed the world's tallest building. Now comes the rather awkward job of cleaning the windows. Enter Cox Gomyl Melbourne, who have designed and built the US$7.3 million cutting-edge technology needed to clean the world's tallest skyscraper, Burj Khalifa Dubai. The 828-metre tower requires custom-designed machinery to wash the 24,000 exterior windows and Cox Gomyl won the tender to provide it, beating two other international applicants. The specially developed machinery allows for harnessed workmen to clean the 160-storeys via suspended metal platforms while six smaller machines were constructed to clean the tiers above level 160, including the tower's spire. The machines travel along tracks covering 40 storeys each, with operators carrying hydration packs to combat the harsh and hazardous weather conditions during the summer months. FISHING FOR A FORTUNE invention Ten years ago, Hagen Stehr says his fishing mates thought he was a "crazy man." After seeing fishing quotas around the world cut back, the Port Lincoln fisherman set his Clean Seas company on a path to discover the secret to breeding the southern bluefin tuna in captivity. "The mere thought was prepostorous to many in our industry," Stehr says. Now his breakthrough has been recognised by Time magazine as one of the inventions of 2009, beaten only by NASA's Ares rocket. Stehr achieved his goal earlier this year when tuna in a tank at Clean Seas' Arno Bay facility began spawning. He says the company has spent ''easily'' AU$40 million so far on the program, but the rewards could be huge in the future. Australia's southern bluefin tuna quota was recently cut by 25 percent over two years, and the global catch has been reduced by 20 percent due to fears that stocks could collapse. All of which makes the Clean Seas' achievement more important. THE ULTIMATE WAVE The Australian brothers who brought the world Google Maps are hoping to have similar success with their latest venture, Google Wave -- an all-in- one open sourced application that streamlines and consolidates online communication. Imagine Gmail, Facebook, Instant Messenger and Twitter combined into one networking site. Google Wave was first previewed by 100,000 invited users and applicants in September 2009. It is currently still in the development phase but is set to hit the mainstream market in late 2010. Paul Jones/Fairfax Photos