Supposedly, in the 1940s, when Arthur C Clarke (now mainly known as an SF author) proposed the idea of geostationary satellites [0] as extra-terrestrial radio r

Supposedly, in the 1940s, when Arthur C Clarke (now mainly known as an SF author) proposed the idea of geostationary satellites [0] as extra-terrestrial radio relays, he believed that they would have to be manned space-stations because of the need to keep changing the valves that had blown. https://en.wikipedia.org/wiki/Arthur_C._Clarke#Geostationary_communications_satellite https://en.wikipedia.org/wiki/Arthur_C._Clarke#Geostationary...