Das Raketen-Weltraumschiff.

Linke's survey uses the public fascination around Fritz von Opel's rocket-powered automobile as a springboard into the physics of spaceflight, drawing on Walter Hohmann's atmospheric braking-spiral calculations and Guido von Pirquet's cost estimates for a manned moon rocket. A closing chapter dismisses fringe launch schemes — an electromagnetic solenoid gun, a proposed evacuated tunnel gun, and Franz Abdon Ulinski's sun-powered electron rocket — as impractical beside the chemical rocket.