Explainer: What is 4-D printing?

Additive manufacturing – or 3D printing – is 30 years old this year. Today, it's found not just in industry but in households, as the price of 3D printers has fallen below US$1,000. Knowing you can p ...

3 hours ago
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Sony hack adds to security pressure on companies

Faced with rising cybercrime like the attack on Sony Pictures Entertainment, companies worldwide are under pressure to tighten security but are hampered by cost and, for some, reluctance to believe they are ...

3 hours ago
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Digging up the 'Spanish Vikings'

The fearsome reputation of the Vikings has made them the subject of countless exhibitions, books and films - however, surprisingly little is known about their more southerly exploits in Spain.

3 hours ago
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