2010 Copiapó mining accident steel rescue capsules, dubbed "Fénix" (English: Phoenix) were constructed by the Chilean Navy with design input from NASA. The navy incorporated most of NASA's suggestions and produced three rescue pods: "Fénix" 1, 2 and 3, all enhanced versions of the Dahlbusch Bomb used for mine rescue. "Fénix" 1 was presented to journalists and the miners' relatives for their assessment. The eventual capsule used to rescue the 33 men was the "Fénix 2", a device in diameter, narrow enough to avoid hitting the sides of the tunnel. It had retractable wheels to allow for a smoother ride to the surface, an
Miners' Union in the Czechoslovak Republic stronghold. In the Ostrava-Karviná coalfields, three separate branches had been formed, one at Moravska Ostrava, one Polish branch at Karviná and one communist-dominated branch at Orlov. At the time, the general secretary of the Miners' Union was the Social Democratic MP Karel Brožík. Between August 20, 1923 and October 6, 1923, a miners strike was launched. The strike ended unsuccessfully, as the Miners' Union in the end accepted cuts in salaries between 9 and 13%. The communists opposed the deal, and the division inside the union became fierce. The communists broke away, and took approximately 10,000 miners with them into