The world’s cleanest railway

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This miniscule clean room connects two larger rooms. When manufacturing microchips and sensors on the scale of 10-nanometer a speck of dust can cause BIG problems. These spaces have ~100x less particles in the air than a surgery room.

Tom Scott shared this video exploring cleanest train car in the world.

At CEA-Leti, in Grenoble, there’s a “funicular” that not many people get to ride: because it’s between two clean rooms, and getting to it requires quite a lot of preparation. ■ CEA-Leti: https://www.leti-cea.com/cea-tech/let…

For most of my research on this, I’m indebted to this French-language article from by Julien Meyrat: https://www.vepres.fr/vepres-presse-s…

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• Source: https://blog.adafruit.com/2023/05/08/the-worlds-cleanest-railway/