Show HN: Tempis, a canvas-based timeline component for large datasets
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The Day I Broke Production Because of an Icon
I'm a big fan of aviation, and one lesson from aviation safety has always stuck with me: accidents rarely happen because of a single mistake. Instead, they're usually the result of several small failures lining up in just the wrong way. Pilots and safety engineers often describe this through th...
Two-component exciton condensates in an electron–hole bilayer
Nature, Published online: 10 June 2026; doi:10. 1038/s41586-026-10636-y Macroscopic quantum coherence arises in two-component exciton Bose–Einstein condensates within MoSe2/hBN/WSe2 electron–hole bilayers, exhibiting distinct spin–valley polarized phases, quantum phase transitions under magnetic ...
Electronics Quality Control in China: An Engineer's Approach
QC for electronics goes beyond AQL sampling — component substitution, counterfeit parts, and firmware integrity require engineering-level review. Standard pre-shipment inspection catches scratched housings, incorrect carton labels, and missing accessories. It does not catch the IC swap the fact...
useMemo Hook in React
useMemo : The useMemo is designed to optimize performance by caching (memoizing) the result of a calculation between component re-renders. The useMemo Hook only runs when one of its dependencies update. syntax : const Value = useMemo (() => calculateValue ( a , b ), [ a , b ]); useMemo have two...
Lessons from a Reusable Web Component
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Author Correction: De novo design of quasisymmetric two-component protein cages
Nature, Published online: 09 June 2026; doi:10.