Daily Tech Feed: Hacker News

DTF:HN for April 19, 2026

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Your Daily Tech Feed covering the top 10 stories on Hacker News for April 19, 2026. Featuring: SPEAKE(a)R: Turn Speakers to Microphones for Fun and Profit [pdf] (2017), Archive of Byte magazine, starting with issue #1 in 1975, Game devs explain the tricks involved with letting you pause a game, What are skiplists good for?, NIST scientists create 'any wavelength' lasers, and more.

Stories covered:

  1. SPEAKE(a)R: Turn Speakers to Microphones for Fun and Profit [pdf] (2017)
    (Article | HN Discussion | 🎧 0:24)
  2. Archive of Byte magazine, starting with issue #1 in 1975
    (Article | HN Discussion | 🎧 3:56)
  3. Game devs explain the tricks involved with letting you pause a game
    (Article | HN Discussion | 🎧 7:26)
  4. What are skiplists good for?
    (Article | HN Discussion | 🎧 11:00)
  5. NIST scientists create 'any wavelength' lasers
    (Article | HN Discussion | 🎧 14:24)
  6. Anonymous request-token comparisons from Opus 4.6 and Opus 4.7
    (Article | HN Discussion | 🎧 17:47)
  7. College instructor turns to typewriters to curb AI-written work
    (Article | HN Discussion | 🎧 20:48)
  8. The electromechanical angle computer inside the B-52 bomber's star tracker
    (Article | HN Discussion | 🎧 23:50)
  9. The world in which IPv6 was a good design
    (Article | HN Discussion | 🎧 28:07)
  10. Updating Gun Rocket through 10 years of Unity Engine
    (Article | HN Discussion | 🎧 30:56)
    11. ...more
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