HNTags.com categorised stories from Hacker News (innovation)
Retrieval from: 2026-09-11 15:00:01.858365+00:00 to: 2026-09-11 15:18:11.709969+00:00
21.  Mexican student creates an acoustic fire extinguisher to put out fire in seconds
319  points by rguiscard | 5  comments | innovation, youtube

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