Here’s a roundup of some of our favorite recent moments on Hacker News.

A HN user talks about how his shipmate sorted out a nuclear submarine’s main battery.

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An HN user who set the Guinness World Record for non-stop movie watching in 2003 weighs in on a thread about VHS errors.

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A former test technician for B6800 systems in a thread about the architecture of Burroughs machines.

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A discussion about experiences with wild birds.

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If you experience a thoughtful, surprising or delightful moment on HN, submit your suggestions to us for future HN Highlights via macro@ycombinator.com.