Answer:
Machines came into use, people were paid less, they were forced to work long hours, etc.
Explanation:
I remember learning about this a while ago, it was a horrible time to live in
It was the North Korean army. And the Chinese. (Russians were really just suppliers)
Due to the fact that there were hot air balloons and everything else, he wanted to explore beyond that and go to the next level, which then in turn made him want to start tinkering with rockets.
