Search
Search the whole magazine.
Full-text search across every article — headlines, decks, body copy, pull quotes, captions and FAQs — plus our editorial and legal policies.
3 results for “LBMA chain of integrity” in Science
Science · 8 August 2026
The Metal That Went Medical
…erial earns its price. Reproducibility is worth more than raw cost in a diagnostic supply chain. · Beyond the strip · Immunogold labelling has been standard in electron microscopy since the 1970s: attach gold particles of a defined size to an antibody, and their electron density…
Amara Okonjo · 19 min read
Science · 9 August 2026
The Metallurgy of Karat
…marking above a minimum weight — currently 1 gram for gold. Very light items such as fine chains and small charms can legally be sold unhallmarked, described only by the retailer's own assertion of fineness, which is precisely where independent testing is most worth requesting. ·…
Tomas Herrera · 17 min read
Science · 10 August 2026
Where Gold Actually Comes From
…urce and running water sorts it by density. · Why the geology explains the industry · The chain from neutron star to earring is a chain of improbabilities, and each link constrains what the modern industry can look like. Because the r-process is rare, gold is scarce in absolute t…
Tomas Herrera · 17 min read
