specifically what big solar flares can do to power grids and other electronics. Which reminded me of this book, Flare, by Roger Zelazny and Thomas T. Thomas. Set in the near future, the Maunder Minimum has gone on for a long time, and the danger of solar storms has been mostly forgotten. And then sunspot activity starts back up, and things go to hell from there. Good read.
Back when I was dispatching, we had a couple of summers with high sunspot activity, and it played hell with radio communications; Florida Highway Patrol used the same frequencies we did, and at times the skip was so bad we could hear units in Florida better than we could hear our own thirty miles away. Couple of times someone relayed a message to a FL headquarters because the unit couldn't get through.
I have to note, after I mentioned the accuracy of the Mosin Nagant the other day Gerry said in comments(among other things):
I do however have a 1943 dated Ishevsk M91-30 which does have rifling and does shoot well. four or five rounds in quick succession, though and a hardwood bat is required to operate the bolt. I would really hate to have to use this gatepost in battle as it is an indifferently made example of a bad design. When I got it, it was arsenal new and unfired.
I call the M91-30 the Yugo of rifles, a bad design poorly done.
The old M-91's are a bad design very well made.
"The Yugo of rifles". Snork.