The world’s cleanest railway

From Tom Scott.

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:

For most of my research on this, I’m indebted to this French-language article from by Julien Meyrat:

Camera: Simon Gillouin
Editor: Michelle Martin
Local production by Block8

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