Engineer Demonstrates Using Railway Network Signals as a Giant Flatbed Scanner

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A creative technical project presented at EMF 2026 explores the concept of using a railway network as a large-scale flatbed scanner. The talk, shared via media.ccc.de, demonstrates how railway infrastructure signals or electrical properties can be repurposed for imaging or sensing purposes. The presentation was delivered at the Electromagnetic Field (EMF) hacker and maker festival in 2026. The video garnered modest attention on Hacker News, attracting 12 upvotes and a small number of comments from the technical community.

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