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bizzz

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  1. Show HN: I tried to build a soundproof sleep capsule (lepekhin.com)

    Hi HN, I've struggled with apartment noise for years, so I attempted to engineer a mechanical solution: a decoupled, mass-loaded sleep capsule. I went down a deep rabbit hole involving: - Mass Law vs. decoupling -…

    3 points 0
  2. Show HN: I built an under-the-door fan duct to lower bedroom CO2 (lepekhin.com)

    Hi HN, This is my attempt to fix groggy mornings by lowering my bedroom CO2 from 1700 ppm to ~900 ppm. I designed a simple, 3D-printed fan duct that directs air under the door to improve air circulation. A note on the…

    62 points 30