Photo: Xinhua/eyevine/Redux
This gargantuan bucket is part of Taiyuan Heavy Industry Co.’s WK-75, the largest mining excavator in the world. The shovel, which can move 75 cubic meters of earth with a single scoop, can be used to dig up to 12 000 metric tons of coal per hour. But there is no concern that such heavy loads may cause the attached vehicle to tip over: The excavator is longer than a basketball court and weighs 2000 metric tons.












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Willie Jones
Willie Jones is an associate editor at IEEE Spectrum. In addition to editing and planning daily coverage, he manages several of Spectrum's newsletters and contributes regularly to the monthly Big Picture section that appears in the print edition.
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