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Edition #88 · Saturday, July 18, 2026 · 2864 positive stories
Tech for Good

New optical chip design controls light speed in real time, simulations suggest

Phys.org Latest Fri, 17 Ju
New optical chip design controls light speed in real time, simulations suggest

Seoul National University College of Engineering announced that a joint research team led by Professor Namkyoo Park and Professor Sunkyu Yu of the Department of Electrical and Computer Engineering at SNU, in collaboration with Professor Xianji Piao of the School of Electrical and Computer Engineering at the University of Seoul, has developed a photonic integrated circuit that can slow light on demand.

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The tech section covers stories about technology making life better, not just more profitable. Open-source tools reaching new audiences, accessibility breakthroughs, AI applications in healthcare and education, infrastructure improvements that quietly make cities work better. Product launches and funding rounds are excluded unless they deliver tangible public benefit.

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Researchers create strong 'super silk' that maintains shape after wetting
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Painstakingly woven from the cocoons of silkworms, silk has been valued for more than 4,000 years as a luxury material. …

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