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The Heaviest Deadweight in the World


The Heaviest Deadweight in the World
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When we’re buying groceries by weight, being a few grams off may not be a big deal. But we do expect the store scales to be calibrated to show the exact measure. The situation becomes more complicated when we want to know the exact measure of something weighing a hundred tons or more. VOA’s George Putic visited a lab that calibrates large-force instruments.

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