Tin cry Tin cry A tin cry is the characteristic sound heard when a bar of tin is bent. Variously described as a "screaming" or "crackling" sound, the effect is caused by the crystal twinning in the metal. The sound is not particularly loud, despite terms like "crying" and "screaming". It is very noticeable when a hot-dip tin coated sheet metal is bent at high speed over rollers during processing. The tin cry is often demonstrated as a simple science experiment. The bar of tin will "cry" repeatedly when bent until it breaks. The experiment can then be recycled by melting and
Arena Naucalpan 15th Anniversary Show Anniversary Show is the fourth oldest still ongoing annual show in professional wrestling, the only annual shows that older are the Consejo Mundial de Lucha Libre Anniversary Shows (started in 1934), the Arena Coliseo Anniversary Show (first held in 1943), and the "Aniversario de Arena México" (first held in 1957). The Arena Naucalpan 15th Anniversary Show was organized by Alfonso Moreno and featured a large number of wrestlers from Consejo Mundial de Lucha Libre (CMLL), who allowed Moreno to book their wrestlers on a regular basis and in this case also sanctioned a match for the CMLL World Middleweight Championship.