Classics of a fantasy

A novel on the topic of interplanetary communications most informative and scientific... of Course, perhaps the best, but, however, until his. The threshold of the world revolution. A specialist in "jet engines, is faced with a difficult choice: the military leadership of the capitalist countries requires him to take part in the development of weapons of mass destruction. At the same time, a group of rich and aristocrats offers Zander to lead the construction of the "starship...