Train running on spheres or balls. The fate of this project was unenviable, although it promised many things and had a considerable feedback both in the USSR and abroad. The invention of NikolaiYarmolchuk (1898-1979) seemed quite promising, especially since in the 30s of the last century one could only dream of high-speed ground transportation. But the main thing - the unusualness of the idea itself struck. It combined the paradox of thought, the challenge to the usual course of things, a kind of intuitive anticipation of the future.