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3 results for “loco London” in Science
Science · 9 August 2026
The Metallurgy of Karat
…and marking since a medieval statute of 1300, administered today by four assay offices — London, Birmingham, Sheffield and Edinburgh — each stamping its own town mark alongside the fineness figure, the sponsor's mark and a date letter. France, Switzerland and much of the Gulf ru…
Tomas Herrera · 17 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 · 19 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 · 17 min read
