Gold foil is used in gilding, which is a technique of applying a thin layer of gold to a surface.
Gold is the stuff of dreams and legends. Empires have been toppled for it, pirates have plundered it and misers have hoarded it. But what does gold mean for science, and does it have a purpose ...
From titanium implants to new superconducting alloys to useful metal compounds, we are increasingly dependent on metals. Without metals, modern civilisation would literally collapse. About 80% of ...
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