Post AzpoFw9f2tMIPcE4yO by kityates@mas.to
 (DIR) More posts by kityates@mas.to
 (DIR) Post #AzpoFtUSx5Da9Gw9U8 by kityates@mas.to
       2025-11-01T08:03:34Z
       
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       It took just 8 minutes for thieves to steal the Napoleonic-era crown jewels from the Louvre. There weren't enough cameras and the ones there were there were facing the wrong way. Could a 50-year-old maths problem have foiled the heist? 🧵 https://www.bbc.com/news/articles/ckgk0y97v0go1/9
       
 (DIR) Post #AzpoFuhyQLcJvSGSB6 by kityates@mas.to
       2025-11-01T08:03:39Z
       
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       After the robbery, Louvre’s director admitted the museum had “failed to protect” the jewels.One in three rooms had no CCTV, and perimeter cameras didn’t cover all walls.Cuts in staff left the museum vulnerable. https://www.artnews.com/art-news/news/french-audit-louvre-robbery-security-flaws-no-cameras-1234757968/2/9
       
 (DIR) Post #AzpoFw9f2tMIPcE4yO by kityates@mas.to
       2025-11-01T08:03:44Z
       
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       Modern museum security is complex and costly. But there’s a surprisingly elegant mathematical solution: the art gallery problem. It asks: what’s the minimum number of cameras needed to see every point in a gallery? https://www.science.smith.edu/~jorourke/books/ArtGalleryTheorems/Art_Gallery_Full_Book.pdf3/9
       
 (DIR) Post #AzpoFxNWUq2cCtifDc by kityates@mas.to
       2025-11-01T08:03:49Z
       
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       Imagine your museum floor plan as a polygon. If it has N corners (vertices), you’ll never need more than the whole number part of N/3 cameras for full coverage. A 15-sided gallery? Max 5 cameras. A 20-sided gallery? Max 6. Simple, right? https://link.springer.com/content/pdf/10.1007/s00022-001-8569-x.pdf4/9
       
 (DIR) Post #AzpoFyOciEW1MbF3ZY by kityates@mas.to
       2025-11-01T08:03:56Z
       
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       Steve Fisk’s 1978 proof is a one from the book: triangulate the gallery, color vertices with 3 colors, then pick the smallest color set for camera placement. Elegant, efficient, and guaranteed coverage. 5/9
       
 (DIR) Post #AzpoFzGVTtcK3iS5Ym by kityates@mas.to
       2025-11-01T08:04:01Z
       
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       For rectangular rooms (like most museums), the number drops further:  to the whole number part of N/4 cameras. (⌊N/4⌋)And for exterior walls? There’s the fortress problem - another variant ensuring perimeter coverage.https://link.springer.com/content/pdf/10.1007/s00022-001-8569-x.pdf6/9
       
 (DIR) Post #AzpoG0Bw2NYQvpJx4a by kityates@mas.to
       2025-11-01T08:04:06Z
       
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       This isn’t just for museums. The art gallery problem helps in robotics (collision avoidance), urban planning (antenna placement), disaster management (drone coverage), and even stage lighting. https://math.mit.edu/~apost/courses/18.204_2018/Nicole_Chesnokov_paper.pdf7/9
       
 (DIR) Post #AzpoG0yr6UgbNYD1KC by kityates@mas.to
       2025-11-01T08:04:11Z
       
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       When I asked if they'd heard of the problem, the Louvre press office didn’t reply. They've probably got a lot on their plate.But as museums rethink their security, revisiting a 50-year-old maths problem could save millions and priceless treasures. https://www.bbc.com/news/articles/ckgk0y97v0go8/9
       
 (DIR) Post #AzpoG1b8o9JLII7b04 by kityates@mas.to
       2025-11-01T08:04:17Z
       
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       This thread is adapted from my substack "Heist of the century - could a simple maths problem have foiled the Louvre robbery?"Please check it out.https://open.substack.com/pub/kityates/p/heist-of-the-century-could-a-simple?r=1cw8pl&utm_campaign=post&utm_medium=web&showWelcomeOnShare=true9/9