Transcription: Well, the concept I worked out was a vertical tower, square in section, reaching from the equator up to the synchronous or stationary orbit, 22,000 miles high. And each of the four faces of this tower, there were railway tracks along which capsules, passengers, freight would run up and down at a very high speed, about 2,000 or 3,000 miles an hour. What we're talking now is really a vertical electric railroad. and the cost of transportation into space would be just trivial.
(.mp3)