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1. Ask HN: What technology do commercial jets have for avoiding collisions? 3 points by mrblampo 3 months ago | past | 1 comment 2. Ask HN: How did/does the "dial tone" work? 2 points by mrblampo 9 months ago | past | 3 comments 3. Ask HN: Anyone else getting lots of Google Docs comment spam? 31 points by mrblampo on Feb 25, 2023 | past | 6 comments

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