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3 results for “bullion transport” in Science
Science · 8 August 2026
The Metal That Went Medical
…old-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 whether you had a virus. · Gold nanoparticles are red because collective electron oscillations — surface plasmons — absorb gr…
Amara Okonjo · 19 min read
Science · 9 August 2026
The Metallurgy of Karat
…ndent testing is most worth requesting. · Investment purity versus jewellery purity · The bullion market and the jewellery trade use the word 'gold' to mean two different design problems, and buyers frequently import the wrong intuition from one to the other. A 400-ounce Good Del…
Tomas Herrera · 17 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
