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A nice place to discuss rumors, happenings, innovations, and challenges in the technology sphere. We also welcome discussions on the intersections of technology and society. If it’s technological news or discussion of technology, it probably belongs here.

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Each Bitcoin transaction uses 4,200 gallons of water — enough to fill a swimming pool — and could potentially cause freshwater shortages (www.tomshardware.com)

submitted 1 year ago by [email protected] to c/[email protected]

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[–] [email protected] 7 points 1 year ago* (last edited 1 year ago)

Swamp coolers.

Fans blow over water to lower the pressure, causing evaporation to occur at room temperature.

Evaporating water absorbs heat from its surroundings without raising the water's temperature as it undergoes a phase change. It absorbs nearly 20 times more heat than it would from being heated from 50 degrees F to 100 degrees.