Construction Brazil has built 37,000 km of railway tracks since the 1950s, but abandoned a third of them — meanwhile, China already operates 50,000 km of high-speed rail and plans 60,000 by 2030. Douglas Avila 28/04/2026 at 06:18
Science and Technology With 12 Giant Wheels, Over 150 Tons, and a Design to Cross Ice and Tundra Without Roads, the Overland Train Mark II—Nuclear “Train on Wheels” Created by the U.S. to Dominate the Arctic During the Cold War Valdemar Medeiros 10/02/2026 at 12:52
