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New nanotech generator could replace batteries in tiny devices

Forward-looking: A European research team involving scientists from DESY and Hamburg University of Technology have unveiled a newly demonstrated triboelectric nanogenerator that produces electricity by pushing water in and out of nanoporous silicon. Their work marks a significant step toward battery-free power for sensors and other low-power devices.
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The MP3 is almost 30, and it still sounds like the early internet

Through the looking glass: Nearly three decades after its US patent date, the MP3 is no longer the cutting edge of audio compression. Yet support for it remains ubiquitous in media players, browsers, automotive systems, and embedded devices. For many people, it also evokes a particular moment in internet culture, when ripping, cataloging, and sharing files felt like core digital rituals rather than background processes handled by cloud services.
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A new study claims to have found the strongest evidence yet for dark matter annihilation

Gamma-ray emissions from annihilation might confirm WIMPs theory
What we know so far: Scientists believe that dark matter comprises most of the material in the observable universe, but the mysterious substance has not been identified or directly detected after nearly a century of investigation. But a recent study claims to provide direct evidence supporting one of the leading dark matter theories.
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Steam holds first-ever Black Friday sale, open through December 1

The autumn sale is gone, and for some reason that's fueling Half-Life 3 speculation (again)
In context: Valve usually holds its autumn sale on Steam around this time of year, but in 2025 the company has instead launched a slightly shorter Black Friday sale, echoing other storefronts. The move has sparked speculation about a minor gap in Steam's event schedule next week. Read on for highlights on various hefty game discounts.
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