Brainstuff
How do they get the lead in a wooden pencil?
- Autor: Vários
- Narrador: Vários
- Editora: Podcast
- Duração: 0:03:41
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Sinopse
Today's pencils are manufactured very differently than the original versions; but they still use a material called graphite, which isn't lead at all. How does the graphite get in the pencil? Find out in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.
