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Heat-resistant ultrasonic transducers

Technical systems must be regularly checked for defects, such as cracks. Up to now, piezo sensors measuring pressure, force or voltage have been used to reliably detect such faults – but only to around 200 degrees Celsius. ...

dateMay 02, 2017 in Engineering
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Why do coal mines need so much water?

From accidental water spills into coastal wetlands, to proposed taxpayer-funded loans, Adani's planned Carmichael coal mine and the associated Abbot Point coal terminal can't keep out of the news at the moment.

dateApr 13, 2017 in Environment
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