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Comment by trhway | Hacker News Reader

The toilets are on springs to survive the shock wave. My acquaintance long time ago told me that in their deep (much deeper than in this article) underground USSR military communication center the whole floors were on some kind of springs and shock absorbers.

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There's a bunker outside of Ottawa Canada, intended to house a select core of the federal government during and after a nuclear horrocaust, that is (at least) 10 storeys of underground on a sprung foundation. It's now a museum to the cold war open to the public (and worth a visit if you're in the area) and you can actually see the massive foundation springs.

Also, they run escape rooms where you're caught in the bunker during a nuclear event, which would be kind of cool.

NORAD headquarters at Cheyenne Mountain: they hollowed out a mountain, and installed an entire complex mounted on springs.

https://en.m.wikipedia.org/wiki/Cheyenne_Mountain_Complex

This was not just done for fancy bunkers like NORAD headquarters but was common practice for telecommunication stations in many countries.

Hollowing a mountain?

Just in case anyone is wondering what kind of shock waves a nearby nuclear blast would generate, watch this video of a 1-megaton test in central Nevada. You can drive right up to this point today: https://www.youtube.com/watch?v=6ETHnsKnKiA

That music... o_O

A lot of equipment in submarines is spring-mounted also, for better survivial of depth-charge shocks.

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