Tiny magnetic spirals unlock the future of spintronics

Spintronics, or spin-electronics, is a revolutionary approach to information processing that utilizes the intrinsic angular momentum (spin) of electrons, rather than solely relying on electric charge flow. This technology promises faster, more energy-efficient data storage and logic devices. A central challenge in fully realizing spintronics has been the development of materials that can precisely control…

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Lab-grown diamonds robbing southern Africa of riches

By AFP Published September 14, 2025 Botswana and southern African peers that built much of their prosperity on diamonds are scrambling for alternatives as cheaper, lab-grown stones threaten their economies. AFP Diamond-dependent Botswana is leading the way and launched a sovereign wealth fund this week to lay the “foundation for a more resilient, sustainable and…

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The sweetpotato’s DNA turned out stranger than anyone expected

The sweetpotato feeds millions worldwide, especially in sub-Saharan Africa, where its natural resilience to climate extremes makes it crucial for food security. But this humble root vegetable has guarded its genetic secrets for decades. Now, scientists have finally decoded its complex genome, revealing an intricate origin story and providing powerful tools to help improve this…

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Most quit breakthrough weight-loss drug within a year

The new class of anti-obesity drugs, glucagon-like peptide-1 receptor agonists (GLP-1RAs), is proving remarkably effective at helping individuals lose weight. However, a new population-wide study being presented at this year’s Annual Meeting of The European Association for the Study of Diabetes (EASD), Vienna (15-19 Sept) finds that half of adults without diabetes who start taking…

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