L is for Lava

In his continuing alphabetical ruminations on quarrying terms, Bill Langer focuses on lava, a term whose origins are rooted as much in water as in fire.
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K is for Potassium

In his ongoing A-Z of quarrying terms, Bill Langer explains how potassium came to earn the chemical symbol of K and how it today still plays a fundamental role in sustaining the human condition.
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Steel: A global product for the US market

In 2018 the USA imposed steel tariffs on all but four countries outside North America (including Australia). Bill Langer explains the importance of the ingredients that make up US steel production – and why tariffs on imported resources don’t perhaps promise the jobs boom that the Trump administration is hoping for …
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