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Já viu um ANEL GRITAR? Olha só esse experimento que coisa mais maluca. Você pega um pedaço de metal, que pode ser um anel, e encosta no gelo seco. O barulho que sai é bizarro! Parece um grito. O que acontece é que o metal é um ótimo condutor de calor, então o gelo seco vai passar de sólido para gasoso muito mais rápido. O gás sendo expelido com força faz o metal vibrar. E é isso que gera o grito! #geloseco #experimento #ciencia #física #som
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