60-second Science
Button Battery Coating Lessens Risk If Swallowed
- Autor: Vários
- Narrador: Vários
- Editora: Podcast
- Duração: 0:01:34
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Sinopse
Thousands of small children swallow tiny batteries each year. A new battery coating could protect kids from internal burns and still allow the batteries to work. Cynthia Graber reports
