First of all, this: High-altitude nuclear explosions. I remember exactly when we started hearing that things had gone kerfuck at Chernobyl; we knew something was up and discussed it in our Russian Language class before it was the big news of the next day.
I’d never learned that the U.S.A. had done that high altitude crap like 25 years before…
I never knew that Judy-Lynn del Rey was kinda short.
I still don’t know why I can make my erect penis pop just like a knuckle when pressure in applied in the correct direction.