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Aquaducts - irrigating Australia
"Chookie" wrote in message news:ehrebeniuk-23D51A.16283707012008@news... Some twit in WA tried to get elected by telling everyone he'd dam the Fitroy and pipe the water to Perth. Problem is that unless the pipe runs downhill all the way (3700 km), you need to pump that water uphill -- and that's really, really energy-intensive. A litre of water, after all, weighs a kilo. To give you an idea, Warragamba Dam (Sydney's main dam) has an output of 2.6 million litres a day. My dam is 2.3 megalitres, maybe you mean gigalitres. Sometimes we forget how darn big Australia is. History also tells us that most of those giant engineering projects don't end well. True. In all the enthusiasm to make the desert bloom humans have produced quite a few disasters due to unintended consequences. David |
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