: Instead of traditional wheels, the train cars sat on massive motorized spheres that ran in a semi-circular concrete trough.
: This often refers to the K80 ball hitch, which allows for higher vertical loads (up to 4 tons) and better maneuverability compared to traditional bolt hitches. PociД…g kulowy
The term is most commonly a direct translation of the English "bullet train," referring to high-speed rail systems characterized by aerodynamic "bullet-shaped" locomotives. : Instead of traditional wheels, the train cars
A more literal "ball train" was an experimental Soviet project in the 1930s designed by Nikolai Yarmolchuk. : Instead of traditional wheels
: It was theorized to reach speeds of up to 300 km/h, though a full-scale version was never completed due to the complexity of the infrastructure. Pociąg kulowy - Centrum Rolnictwa