And you've inspired me to find an electronic copy of the Usbourne Book of the Future (1979) which I read a lot as a child in 1985.
It's got mention of Buckminster Fuller, space elevators, linear mass accelerators for shooting ore off the moon, giant flat screen TVs, watch phones that take their time from satellites, video discs...
Great stuff.
https://archive.org/stream/Usborne_Book_of_the_Future_1979_pointlessmuseum#page/n0/mode/1up