Tin cry recrystallizing the metal. The low melting point of tin (only 232 °C, or about 500 K) makes re-casting easy. Tin anneals at reasonably-low temperature as well, normalizing tin's microstructure of crystallites/grains. Although the cry is most typical of tin, a similar effect occurs in other metals, such as niobium, indium, zinc, cadmium, gallium, and mercury. 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
Tin-Tin Kyrano that stereotypes are common but "handled with some sensitivity – all except for Tin-Tin, a literal China doll". Kate Hunt of the University of Glasgow, author of a study of the series' presentation of tobacco smoking, observes that in marked contrast with prolific smokers such as Penelope, Tin-Tin is "incongruously" and "inconsistently" seen with a cigarette in only one episode ("The End of the Road"). She writes that the character occupies a socially-ambiguous position within her home environment, appearing variously as "adopted daughter, secretary, and occasional member of the International Rescue team". In the 2004 live-action film, "Thunderbirds", in which