Regarding the letter by Don Siefkes, of San Leandro, "Let's fill Lake Powell in less than a year via Mississippi aqueduct." As long as we are dreaming up solutions, the aqueduct should be terminated ...

A traditional windmill which drives a pump: that is the simple concept behind the combination of windmill/reverse osmosis process for seawater desalination. In this case, it involves a high-pressure ...

Windmill is a tall structure with its parts that turn round when the when the wind blows. It could be the ideal replacement of water pump engine if it is fitted to water pump for many practical ...

And perhaps standing as the perfect metaphor of this change is the windmill itself. In our endless search for water supplies, these metal monuments have long been fixtures of the Australian landscape, ...