Shared by one of our readers, Steve, this is a video from the era when Soviet documentaries were still being translated into foreign languages. This particular one tells a story of an atomic icebreaker that could sustain people deep into the polar ice
fields without any need of external sources of heat or fuel, which was really groundbreaking technology at the time and is still pretty cool even now. There is one more documentary on atomic power in Soviet Russia as a bonus inside:
The "Jupiter" factory of Pripyat is a legend. According to the official history they used to make cassette recorders and other minor parts, but most of its shops made very different products. Secretly, in the grounds of "Jupiter" they were developing and assembling military computers and
"black boxes", those products were mysteriously named "Product No:". Even today it is still not known for sure what products came off the assembly line here. We can only say that most of them were used for military submarines, fighters and even in the space industry.