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3 results for “Minamata Convention” in Science
Science · 9 August 2026
The Metallurgy of Karat
…ment as the karat figure, expressed as parts per thousand. It is the modern international convention and it is unambiguous in a way that '18k' printed on an unhallmarked import is not. In jurisdictions with a compulsory hallmarking regime, that number has been verified by an inde…
Tomas Herrera · 16 min read
Science · 8 August 2026
The Metal That Went Medical
Divide gold finely enough and it stops being gold-coloured, stops being inert in the way you expect, and starts doing work in places no bullion bar could reach — including the test strip that told you…
Amara Okonjo · 15 min read
Science · 10 August 2026
Where Gold Actually Comes From
Every gram of gold on Earth was manufactured in an astrophysical catastrophe, arrived here after the planet had already formed, and was then concentrated by hot water. Three separate accidents, none o…
Tomas Herrera · 18 min read
