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16 Apr: A Tiny Adjustment in a Lab Changed What AI Hardware Might Cost to Run

Three years of failed experiments. Then, in late November, the results changed. Babak Bakhit, a researcher at the University of Cambridge’s Department of Materials Science and Metallurgy, had spent the better part of three years trying to build a memristor that actually worked at scale. Most attempts failed. The breakthrough, when it came, traced back to a single procedural change: adding oxygen only after the first layer had already formed. Small adjustment, different outcome entirely.

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06 Apr: The Waterlogged Problem at the Heart of Clean Hydrogen Power

For all the promise hydrogen fuel cells have carried for decades, a remarkably mundane obstacle has kept them from fulfilling it. Water, the very byproduct that makes hydrogen combustion clean, has a habit of accumulating inside the cell itself, blocking the electrochemical reactions that generate power and gradually choking output until the system stalls. Engineers have known about this for years. Solving it cheaply has proven considerably harder.