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The few viewers wince, shake or two or three smaller "aftershocks" of the soil. Then silence again. And happy faces. Railroad tracks as a specimen "In this case, we work to drop a ton of steel at a controlled 1.20-meter-long specimen: a piece of railroad track. Is measured then the deformed rail piece and checked for cracks, "says Reinhold Kipscholl (60), managing partner of Coesfeld Material Test. But why?
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