Water cooling computers. Pretty much all aesthetics. It's expensive, hard to maintain, and isn't that much better than decent air cooling these days. Looks really cool, and I still want to do a glass tube build.
Would not recommend to anyone else. You really have to want to do this just because.
There was a gap in [some military capability] during the Cold War, and the USA was losing it. Almost anything you stick in there, Russia was behind. They sometimes implied otherwise, but it's rare that they ever were. Occasionally, they used everything they had to just about match.
By the 1960s, their navy was pretty good, though. Don't let anyone tell you they were just a bunch of vodka drunk idiots. Not at that time, anyway.
At the opposite end of what this thread is about, Dr Strangelove is far more correct than it should be.