[Stratoscope]

And so many of those people were injured because they went to a window to see the spectacle, not knowing about the shock wave that was coming.

It made me realize that the civil defense films we watched in the '50s weren't so misguided after all:

https://www.google.com/#q=when+you+see+the+white+flash+duck+...

[mikeash]

Indeed, that's pretty much what "duck and cover" was all about. There was even a school teacher in Chelyabinsk who apparently remembered her Cold War drills and had her students take cover, saving them from injury.