The idea of transporting people via sealed tubes has existed for over 150 years and is a concept often featured in science fiction, both past and present. Pneumatic trains were even tested in London’s Underground in the 1860’s for a …
The idea of transporting people via sealed tubes has existed for over 150 years and is a concept often featured in science fiction, both past and present. Pneumatic trains were even tested in London’s Underground in the 1860’s for a …