Tempered steel was a thing 2,900 years ago
Until recently it was assumed that it had not been possible to produce suitable quality steel in the Early Iron Age and certainly not in the Final Bronze Age.
Caterpillar reaches tentative deal with union, averting possible strike
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How zircon helps identify untapped copper deposits
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Recharge Industries grabs failed startup Britishvolt
The Australian firm has bought Britishvolt, which planned a battery…
Cleantech startup aims to transform mine waste into a ‘climate solution’
Arca was named as one of Canada’s most investable cleantech…
